Definition of "do"
do1
/duː/
verb
third-person singular simple present does, present participle doing, simple past did, past participle done
(auxiliary) A syntactic marker.
(auxiliary) A syntactic marker for emphasis with the indicative, imperative, and subjunctive moods.
(intransitive) To be reasonable or acceptable.
(transitive) To impersonate or depict.
(informal) To punish for a misdemeanor.
noun
plural dos or do's or (uncommon) doos
do2
/dəʊ/
do3
adverb
not comparable
(archaic) Abbreviation of ditto.