(1):

(n.) One who takes care of, or tends, machines in a factory; a kind of assistant foreman.

(2):

(n.) A kind of governor.

(3):

(n.) A machine or frame for stretching cloth by means of hooks, called tenter-hooks, so that it may dry even and square.

(4):

(v. t.) To hang or stretch on, or as on, tenters.

(5):

(v. i.) To admit extension.