Roget's Thesaurus: Entry 530 (Ambush Means of concealment)

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#530. Ambush [Means of concealment]. -- N. camouflage; mimicry; hiding place; secret place, secret drawer; recess, hold, holes and corners; closet, crypt, adytum[obs], abditory[obs], oubliette.

ambush, ambuscade; stalking horse; lurking hole, lurking place; secret path, back stairs; retreat &c. (refuge) 666.

screen, cover, shade, blinker; veil, curtain, blind, cloak, cloud.

mask, visor, vizor[obs], disguise, masquerade dress, domino.

pitfall &c. (source of danger) 667; trap &c. (snare) 545.

V. blend in, blend into the background.

lie in ambush &c (hide oneself) 528; lie in wait for, lurk; set a trap for &c (deceive) 545; ambuscade, ambush.

[transitive] camouflage.

Adj. camouflaged, hidden, concealed.

Adv. aux aguets[obs].