1. (v. i.) To be on one's guard; to be cautious; to take care; -- commonly followed by of or lest before the thing that is to be avoided.

2. (v. i.) To have a special regard; to heed.

3. (v. t.) To avoid; to take care of; to have a care for.

be incognito be latent beware burrow couch crawl crouch disappear drop from sight escape notice go into hiding go to ground go underground grovel have a care hibernate hide hide away hide out hole up hug the earth lie lie beneath lie close lie doggo lie dormant lie hid lie prone lie prostrate lie snug lie under look about one look out look sharp lurk make no sign masquerade mind play peekaboo qui vive remain anonymous retire from sight sit tight smolder squat stay in hiding take care take cover take heed underlie watch out wear a mask