Language/Multiple-languages/Vocabulary/Must‐Know-Words-for-Polyglots

Mainly about linguistic terms. Also other important things.

In progress. Far from being completed.

English
phone
phonetics
phoneme
syllable
consonant
vowel
International Phonetic Alphabet
root
cognate
false friend
affix prefix, suffix
number
noun gender masculine, feminine, neuter countable noun, uncountable noun
pronoun personal pronoun first / second / third-person masculine / feminine / neuter singular / plural
verb transitive verb, intransitive verb modal verb reflexive verb auxillary verb
phrase
case nominative case, accusative case, dative case, genitive case
tense past tense, present tense, future tense
aspect simple aspect, progressive aspect & continous aspect, perfect aspect
mood indicative mood, interrogative mood, imperative mood, subjunctive mood
voice active voice, passive voice
inflection declension, conjugation
polarity affirmative, negative
comparison comparative, superlative
ambiguity
linguistic relativity