A sudden or irregular incursion in border warfare; hence, any irregular incursion for war or spoils; a raid.
A brief excursion or attempt, especially outside one's accustomed sphere.
To participate in a foray.
To do or attempt something outside one's typical area of expertise.
An advance into enemy territory, an attempted invasion; an encroachment, an incursion.
Often followed by in, into, or on: initial progress made toward accomplishing a goal or solving a problem.