(telecommunications) Initialism of grade of service.

Alternative form of no-go

Initialism of galactooligosaccharides.

(uncommon) The act of going. / A turn at something, or in something (e.g. a game). / An attempt, a try. / An approval or permission to do something, or that which has been approved.

(postpositive, chiefly military and space flight) Working correctly and ready to commence operation; approved and able to be put into action.

(board games) A strategic board game, originally from China, in which two players (black and white) attempt to control the largest area of the board with their counters.

Desired; desirable; of choice. / Reliable; likely to perform in difficult circumstances.

A person or thing that is one’s usual choice.

(idiomatic) To put maximum effort into achieving something. / To decide to do something; especially after a period of hesitation.

To enter a competition. / (colloquial) To have an interest in or approve of something. / (colloquial) To engage oneself or take part in something.