(informal) Sodium fluoroacetate poison.

(UK politics) Synonym of 10 Downing Street.

Measles; rubeola; 7-day measles.

complete, entire, whole / (colloquial) Wholly sure; confident in one's knowledge.

Completely, entirely, wholly. / Completely well.

(South Africa, slang) excellent, wonderful, magnificent

(computing) An early thin form of Ethernet cable

(computing) An early form of Ethernet cable

(physics) A stable isotope, ¹⁰₅B, having five protons and five neutrons, that makes up about 20% of natural boron; it is a good absorber of slow neutrons and is used as a radiation shield in Geiger counters

(organic chemistry) An isomer of naphthoquinone.