is a specific kind of: appear.

is a specific kind of: change form, change shape, deform.

derivation: bulge, bump, excrescence, extrusion, gibbosity, gibbousness, hump, jut, prominence, protrusion, protuberance, swelling | protrusible, protrusile | protrusive.

is a specific kind of: exit, get out, go out, leave.

is the opposite of: pop in.

is a specific kind of: come forth, come out, egress, emerge, go forth, issue.