hep

n.	1.	See Hip, the fruit of the dog-rose.
a.	1.	Same as Hip, a., but older and now less frequently used.
interj.	1.	A call used by drill instructors to count cadence during marching; used identically to hut and hup.

Adj.

1.

hep - informed about the latest trends Synonyms: hip, hip to

HEP - High Energy (Particle) Physics.

alive to, appreciative of, apprised of, awake to, aware of, behind the curtain, behind the scenes, canny, cognizant of, conscious of, hep to, in the know, in the secret, informed of, knowing, let into, mindful of, nimble-witted, no stranger to, on to, privy to, quick, quick-witted, seized of, sensible of, sensible to, sharp, sharp-witted, slick, smart, streetwise, undeceived, wise to