in the act (of doing something)

: the doing of a thing : deed

: something done voluntarily

: the process of doing something : action

: to take action : move

: to conduct oneself : behave

: to perform on the stage

used for a standardized achievement test to evaluate suitability for college admission

: the act of performing or executing : action

: things that are done or that occur : goings-on

: social activities

: some indeterminate or unspecified thing

: some indeterminate amount more than a specified number

: a person or thing of consequence

: in some degree : somewhat

used as an intensive giving adverbial force to an adjective