The document defines 20 technical terms related to grammar, linguistics, and textual analysis: auxiliary verb, circumlocution, clause, articles, foregrounding, idioms, imperative verb, inflection, modification, orthography, predicate, provenance, register, stem, etymology, syntax, word, anaphoric reference, text, and ellision. Key terms include auxiliary verb, clause, articles, imperative verb, inflection, stem, syntax, word, text, and ellision.