II. WORDS RELATING TO SPACE
III. FORM
3. Superficial form
Stopper.
[Nouns] stopper, stopple; plug, cork, bung, spike, spill, stopcock, tap; rammer; ram, ramrod; piston; stop-gap; wadding, stuffing, padding, stopping, dossil, pledget, tompion, tourniquet.
cover [more]; valve, vent peg, spigot, slide valve.
janitor, doorkeeper, porter, warder, beadle, cerberus, ostiary.
