The Word is:”do”

do

do1
/duː/

verb

1.perform (an action, the precise nature of which is often unspecified).

“something must be done about the city’s traffic”
synonyms: carry out, undertake, discharge, execute, perpetrate, perform, accomplish, implement, achieve, complete, finish, conclude; More

2.achieve or complete, in particular:

verb
1.used before a verb (except be, can, may, ought, shall, will ) in questions and negative statements.

“do you have any pets?”
2.used to refer back to a verb already mentioned.
“he looks better than he did before”

noun

1.BRITISHinformal
a party or other social event.
“the soccer club Christmas do”
synonyms: party, reception, gathering, celebration, function, affair, event, social event, social occasion, social function, social; More
2.NORTH AMERICANinformal
short for hairdo.
“a bowl-shaped do of perfect silky hair”

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