A child's game in which players throw a ball or other similar object so as to prevent a selected player from catching it. When the selected player catches the thrown object, he or she trades places with whoever threw it in a manner that allowed it to be caught.

The unpublished key in asymmetric cryptography.

A person who lives in a lighthouse and tends the light together with its optics and mechanisms.

Obsolete spelling of Celt

(computing, databases) In the design of a database table, the primary key (abbreviated PK) is selected among the non-empty set of candidate keys. The PK is a column (or an irreducible group of columns) able to identify every row of the table.

(Britain) Someone who drives slowly along roads seeking sex from prostitutes or other women.

plural of kerb crawler

(Britain) The act of driving up roads seeking prostitutes or other women for sex

(electronics) A button, located along a display device, which performs whatever function is shown near it on the display.

(film, of lighting) Gently highlighting; low-key.