> ## Documentation Index
> Fetch the complete documentation index at: https://docs.myspellchecker.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> Terms and definitions used throughout mySpellChecker documentation, covering Myanmar script, validation pipeline, algorithms, and tooling.

Key concepts, abbreviations, and Myanmar script terminology referenced throughout this documentation, organized by topic.

## Myanmar Script & Unicode

<AccordionGroup>
  <Accordion title="Characters & Components">
    | Term                  | Definition                                                                                                                                  |
    | --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
    | **Consonant**         | One of 35 consonant characters in Myanmar script: 34 base consonants (U+1000–U+1021) plus Great Sa (ဿ, U+103F).                             |
    | **Dependent Vowel**   | Vowel signs that attach to consonants (U+102B–U+1032). Cannot stand alone.                                                                  |
    | **Independent Vowel** | Vowel characters that can stand alone without a consonant (U+1023–U+102A).                                                                  |
    | **Medial**            | Consonant modifiers that appear between the base consonant and vowel. Four medials exist: ျ (ya-pin), ြ (ya-yit), ွ (wa-hswe), ှ (ha-htoe). |
    | **Syllable**          | The fundamental unit of Myanmar text. Consists of consonant + optional medials + optional vowels + optional finals.                         |
    | **Tone Mark**         | Characters that indicate tone, nasalization, or emphasis: ံ (anusvara, U+1036), ့ (dot below, U+1037), and း (visarga, U+1038).             |
  </Accordion>

  <Accordion title="Special Characters">
    | Term                      | Definition                                                                                                                                                   |
    | ------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
    | **Asat** (်)              | Myanmar Unicode character (U+103A) that "kills" the inherent vowel of a consonant, creating a final consonant sound. Also called "killer" or "vowel killer". |
    | **Anusvara** (ံ)          | Myanmar Unicode character (U+1036) indicating nasalization of the preceding vowel.                                                                           |
    | **Kinzi**                 | A special stacking form where င် appears above the following consonant using virama (္).                                                                     |
    | **Virama** (္)            | Myanmar Unicode character (U+1039) used for consonant stacking.                                                                                              |
    | **Visarga** (း)           | Myanmar Unicode character (U+1038) indicating emphasis or sentence finality.                                                                                 |
    | **Zero-Width Characters** | Invisible Unicode characters (ZWSP, ZWNJ, ZWJ, BOM) that should typically be removed during normalization.                                                   |
  </Accordion>

  <Accordion title="Encoding & Normalization">
    | Term                                  | Definition                                                                                                                  |
    | ------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
    | **Unicode**                           | International standard for text encoding. Myanmar script uses range U+1000–U+109F plus extensions.                          |
    | **Myanmar Extended-A**                | Unicode block U+AA60–U+AA7F containing additional characters for Shan and other languages.                                  |
    | **Myanmar Extended-B**                | Unicode block U+A9E0–U+A9FF containing additional characters for Shan and Pao languages.                                    |
    | **NFC** (Normalization Form Composed) | Unicode normalization form where characters are stored as precomposed units. Recommended for Myanmar text.                  |
    | **Normalization**                     | Process of converting text to a standard form, including removing zero-width characters and applying Unicode normalization. |
    | **Zawgyi**                            | Legacy font/encoding for Myanmar script that differs from Unicode. mySpellChecker can detect and convert Zawgyi text.       |
  </Accordion>
</AccordionGroup>

## Validation Pipeline

<AccordionGroup>
  <Accordion title="Pipeline Layers">
    | Term                        | Definition                                                                                                                          |
    | --------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
    | **Syllable-First Approach** | Validate at the syllable level first, since syllables can be identified without a dictionary, then move to word and context levels. |
    | **Validation Level**        | Configuration option specifying depth of checking: `SYLLABLE` or `WORD` (defined in `ValidationLevel` enum).                        |
    | **Word Validation**         | Layer 2 of the validation pipeline that checks words against the dictionary and generates suggestions.                              |
    | **Grammar Checking**        | Layer 2.5 validation that applies syntactic rules to detect grammatical errors.                                                     |
    | **Context Validation**      | Layer 3 of the validation pipeline that uses N-gram probabilities to detect real-word errors.                                       |
    | **Semantic Validation**     | Optional deep validation using neural network models to understand meaning.                                                         |
  </Accordion>

  <Accordion title="Error Types">
    | Term                | Definition                                                                              |
    | ------------------- | --------------------------------------------------------------------------------------- |
    | **Real-Word Error** | A spelling error where the misspelled word is itself a valid word but wrong in context. |
  </Accordion>
</AccordionGroup>

## Algorithms

<AccordionGroup>
  <Accordion title="Spelling Correction">
    | Term                             | Definition                                                                                                                  |
    | -------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
    | **SymSpell**                     | Algorithm for extremely fast spelling correction using symmetric delete operations.                                         |
    | **Edit Distance**                | The minimum number of single-character operations (insert, delete, substitute) needed to transform one string into another. |
    | **Levenshtein Distance**         | Edit distance metric measuring single-character insertions, deletions, and substitutions.                                   |
    | **Damerau-Levenshtein Distance** | Edit distance metric that includes transposition as a single operation. Used for generating spelling suggestions.           |
  </Accordion>

  <Accordion title="Context & Tagging">
    | Term                             | Definition                                                                                   |
    | -------------------------------- | -------------------------------------------------------------------------------------------- |
    | **N-gram**                       | A contiguous sequence of N items (syllables or words). Used in context validation.           |
    | **Bigram**                       | A sequence of two consecutive tokens (syllables or words) used for context analysis.         |
    | **Trigram**                      | A sequence of three consecutive tokens used for context analysis.                            |
    | **Part-of-Speech (POS) Tagging** | Process of marking words with their grammatical category (noun, verb, particle, etc.).       |
    | **Viterbi Algorithm**            | Dynamic programming algorithm used for POS tagging to find the most likely sequence of tags. |
  </Accordion>

  <Accordion title="Models & Inference">
    | Term     | Definition                                                              |
    | -------- | ----------------------------------------------------------------------- |
    | **ONNX** | Open Neural Network Exchange format used for semantic model deployment. |
  </Accordion>
</AccordionGroup>

## Data & Infrastructure

<AccordionGroup>
  <Accordion title="Storage & Processing">
    | Term                    | Definition                                                                                   |
    | ----------------------- | -------------------------------------------------------------------------------------------- |
    | **Dictionary Provider** | Pluggable storage backend for dictionary data. Implementations include SQLite, Memory, JSON. |
    | **Frequency**           | The count of how often a word or syllable appears in a corpus.                               |
    | **Segmentation**        | Process of breaking text into meaningful units (syllables or words).                         |
  </Accordion>

  <Accordion title="Development Tools">
    | Term       | Definition                                                                                                                     |
    | ---------- | ------------------------------------------------------------------------------------------------------------------------------ |
    | **Cython** | A programming language that makes writing C extensions for Python easy. Used in mySpellChecker for performance-critical paths. |
    | **OpenMP** | API for parallel programming. Used in Cython extensions for batch processing.                                                  |
  </Accordion>
</AccordionGroup>