doable

Concise Oxford English Dictionary © 2008 Oxford University Press:
do1

▶verb (does; doing; past did; past part. done)

• 1 perform or carry out (an action).

  ■ work on (something) to bring it to completion or to a required state.

  ■ make, produce, or provide.

  ■ work at for a living or take as one's subject of study.

  ■ informal take (a narcotic drug).

• 2 achieve or complete (a specified target).

  ■ informal visit as a tourist.

  ■ informal spend (a specified period of time) in a particular occupation or in prison.

  ■ (be/have done with) give up concern for; have finished with.

• 3 act or progress in a specified way.

  ■ have a specified result or effect on.

• 4 be suitable or acceptable.

• 5 informal beat up or kill.

  ■ Brit. swindle.

• 6 (usu. be/get done for) Brit. informal prosecute; convict.

▶auxiliary verb

• 1 used before a verb in questions and negative statements.

• 2 used to refer back to a verb already mentioned.

• 3 used in commands, or to give emphasis to a positive verb.

• 4 used with inversion of a subject and verb when an adverbial phrase begins a clause for emphasis.

▶noun (pl. dos or do's) Brit. informal a party or other social event.

– phrases
be (or have) to do with be concerned or connected with.
do one's head in Brit. informal make one extremely angry or agitated.
do or die persist, even if failure or death is the result.
dos and don'ts rules of behaviour.
that does it! informal indicating that one will not tolerate something any longer.

– phrasal verbs
do away with informal put an end to; abolish or kill.
do by treat or deal with in a specified way: she did well by them.
do someone down Brit. informal criticize someone.
do for

• 1 informal defeat, ruin, or kill.

• 2 suffice for.

do something (or nothing) for informal enhance (or detract from) the appearance or quality of.
do someone in informal

• 1 kill someone.

• 2 (be done in) be tired out.

do someone out of informal deprive someone of (something) in an underhand or unfair way.
do something out Brit. informal decorate or furnish a room or building in a particular way.
do someone/thing over Brit. informal

• 1 beat someone up.

• 2 ransack a place.

do something up

• 1 fasten, wrap, or arrange something.

• 2 informal renovate or redecorate a room or building.

• 3 be done up be dressed impressively.

do with

• 1 (can/could do with) would find useful or would like to have or do: I could do with a cup of coffee.

• 2 (can't/won't be doing with) Brit. be unwilling to tolerate.

– derivatives
doable adjective (informal),
doer noun.

– origin OE dōn, of Gmc origin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
do2

▶noun variant spelling of doh1.