to close, shut, or stop up (a passage, opening, etc.).

to shut in, out, or off.

Physical Chemistry . (of certain metals and other solids) to incorporate (gases and other foreign substances), as by absorption or adsorption.

Dentistry . to shut or close, with the cusps of the opposing teeth of the upper and lower jaws fitting together.

Meteorology . to form an occluded front.

verb

allow , help , permit

verb

choke , clog , close , close out , congest , curb , fill , hinder , impede , leave out , lock out , obstruct , plug , seal , shut , stopper , stop up , throttle , absorb , block , prevent