double

v.

[1]	duplicate , duplicate , replicate , copy , increase , enlarge , magnify
[2]	double over , double up
[3]	duplicate , reduplicate , repeat , replicate

n.

[1]	two-base hit , two-bagger , two-baser
[2]	stunt man , stunt woman
[3]	image , look-alike
[4]	doubling
[5]	twin , duplicate , copy , replica , facsimile , clone , copy , counterpart , doppelganger , look-alike , stand-in , understudy , (Slang) (dead) ringer , spitting image/spit and image
[6]	at/on the double , quickly , on the run , at full speed/tilt , briskly , immediately , at once , without delay , (Slang) p.d.q.(prety damned quick)

adv.

[1]	doubly , twice

adj.

[1]	twofold , paired , coupled , duplicate(d) , doubled
[2]	folded/doubled/bent over , overlapped , two-ply
[3]	dual , twofold , ambiguous , double-barrelled
[4]	twice
[5]	deceitful , dishonest , treacherous , traitorous , insincere , hypocritical , double-dealing , false
[6]	two-fold , treble , threefold , three-fold
[7]	duple
[8]	two-fold
[9]	bivalent
[10]	forked