(computing) A continuation that can be used like any other value in a programming language, giving a powerful ability to control flow of execution.

A first cousin with whom one shares four grandparents (and hence is also a double cousin).

The offspring of a parent's half-sibling.

plural of half-first cousin

plural of double first cousin

plural of first day cover

plural of first port of call

The senior Royal Navy officer and a member of the Ministry of Defence.

The situation where a company producing goods also maintains and operates its own vehicles for delivery, rather than using third-party carriers.

(philately) Alternative form of first day cover.