(d) v.
Present: sing, do, do (Archaic thou do·est or dost), does (Archaic do·eth or doth), plural do; past: did (Archaic thou didst); pp. done; ppr. do·ing v.t.
1. To perform, as an action; execute or fabricate, as a piece of work.
2. To finish; complete.
3. To deal with or take care of: to do chores.
4. To cause or produce; bring about: to do good or evil.
5. To exert; put forth: He did his best.
6. To work at as one's occupation.
7. To translate.
8. To present (a play, etc.): They are doing Hamlet tonight.
9. To play the part of: to do Ophelia.
10. To cover; travel: to do a mile in four minutes.
11. To visit; make a tour of: to do the Louvre.
12. To serve; be sufficient for: Five dollars will do me.
13. To extend; render: to do homage.
14. To solve; work out, as a problem.
15. To serve, as a term in prison.
16. Colloq. To cheat; swindle.
—v.i.
17. To exert oneself; be active; strive: to do or die.
18. To conduct or behave oneself.
19. To fare; get along: I did badly in the race.
20. To suffice; serve the purpose.
—to do away with
1. To throw away; discard.
2. To kill; destroy.
—to do by To act toward.
—to do for
1. To provide for; care for.
2. Colloq. To ruin; kill.
—to do in Slang To kill.
—to do over Colloq. To redecorate.
—to do to death To execute; kill.
—to do up
1. To wrap or tie up, as a parcel.
2. To roll up or arrange, as the hair.
3. To clean; repair.
4. To tire out.
—to make do To get along with whatever is available.
—auxiliary As an auxiliary, do is used:
1. Without specific meaning in negative, interrogative, and inverted constructions: I do not want it; Do you want to leave?; Little did he know.
2. To add force to imperatives: Do hurry.
3. To express emphasis: I do believe you.
4. As a substitute for another verb to avoid repetition: I will not affirm, as some do; Did he come? Yes, he did.
—noun
1. Colloq. A trick; cheat: It is a regular do.
2. Deed; duty: chiefly in the phrase to do one's do.
3. Colloq. Festivity.
4. Obs. Bustle; stir. [OE dōn] Synonyms (verb): accomplish, achieve, actualize, commit, complete, consummate, discharge, effect, execute, finish, fulfil, perform, perpetrate, realize, transact. Do is the one comprehensive word which includes this whole list. We may say of the least item of daily[/OE dōn] work, “It is done,” and of the grandest human achievement, “Well done!” To discharge is to do what is given in charge, expected, or required; we may say to do or to discharge one's duty, the duty or duties of one's office, station, position, etc., where discharge is the more formal and technical word, signifying to perform to the last and utmost all that is required. Commit, as applied to actions, is used only of those that are bad, whether grave or trivial; perpetrate is used chiefly of aggravated crimes, or, somewhat humorously, of blunders. A man may commit a sin, a trespass, or a murder; perpetrate an outrage or a felony. Perform is used generally in a good sense; as, to perform a task, a duty, a service, etc. Compare PERFORM, under ACCOMPLISH. We finish a garment or a letter, complete an edifice or a life work, consummate a bargain or a crime, discharge a duty, effect a purpose, execute a command, fulfil a promise, perform our daily tasks, realize an ideal, accomplish a design, achieve a victory. Compare ACCOMPLISH, MAKE, TRANSACTION. Antonyms: baffle, defeat, destroy, fail, frustrate, mar, miscarry, miss, neglect, ruin, spoil.

(dō) noun Music
The first of the syllables commonly used in solmization; the keynote of any key. [<Ital.]