A kerb of reduced height to allow vehicles access to properties adjoining a road, or to assist wheelchair users.

(intransitive, idiomatic, (with "for")) To be on the alert, to be watchful.

(idiomatic) To watch for or look out for.

A form of cryptography which allows users to communicate securely without previously agreeing on a shared secret key (abbreviation PKC)

A key designed to open a set of several locks; a passkey. / (figuratively) Any tool or technique that can solve many types of difficulty.

In a keen manner.

(idiomatic) To ward off poverty or hunger. / (idiomatic, humorous, euphemistic) To delay sexual ejaculation.

(transitive) to keep something near one.

(transitive) to enter data by keyboarding

(UK, parts of North America) fond of; appreciative of