Synonyms for about

Approximately

roughly, nearly, around; see approximately.

Concerning

regarding, respecting, concerning, touching, of, on, in relation to, relative to, relating to, as regards, with regard to, with respect to, in the matter of, in reference to, with reference to, referring to, as concerns, so far as (something) is concerned, in connection with, apropos of, connected with, concerned with, dealing with, thereunto, in re (Latin), thereby, hereof, wherein, with a view toward, as to, as for, anent.

Around

surrounding, round about, on all sides; see around 1.

Active

astir, in motion, alert; see active 1, 2.