A rampart of earth, stones etc. built up for defensive purposes. / A structure built for defense surrounding a city, castle etc.

To enclose with, or as if with, a wall or walls.

To boil. / To well, as water; spring.

(chiefly dialectal) A spring of water.

(nautical) A kind of knot often used at the end of a rope; a wall knot or wale.

(transitive, nautical) To make a wall knot on the end of (a rope).

(US) Pronunciation spelling of well.

A surname. / A village in Gwinear-Gwithian parish, south-west Cornwall, England (OS grid ref SW6036).

(astronomy) A Chinese constellation located near Pegasus and Andromeda, one of the 28 lunar mansions and part of the larger Black Turtle.

Pertaining to a wall; surrounded by a wall / Pertaining to something which has been placed into a wall, i.e., immured.