1.Definition: a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary)

Related Noun(s):aegir, eager, eagre

Category: General

2.Definition: a hole or passage made by a drill; usually made for exploratory purposes

Category: Objects

3.Definition: a person who evokes boredom

Related Noun(s):dullard

Category: People

4.Definition: diameter of a tube or gun barrel

Related Noun(s):caliber, calibre, gauge

Category: General