A peninsula in the Vale of Glamorgan county borough, in southern Wales. / A seaside resort and residential area within the town of Barry (OS grid ref ST1166).

(informal) To understand one's situation, how to act in that situation, and the results of those actions.

Used other than figuratively or idiomatically: see is, it. / (Canada, South Africa, India, MLE, MTE) really? is that so?

(Singapore, Wales) Final interrogative particle forming a tag question.

(chemistry, physics) The effect that differing masses of different isotopes of the same element have on the physical and chemical properties of that element

plural of coral island

A type of island formed from coral detritus and associated organic material.

A person's good actions, rather than outward appeal, define his or her handsomeness in the eyes of others.

(chemistry) A reaction in which one or more atoms in a molecule are exchanged for ones of a different isotope of the same element

(idiomatic) I don't know; I have no idea.