(intransitive, slang) To be just on the point of soiling oneself.

(UK, Australia, South Africa, Malaysia, New Zealand, Singapore, India) To make contact with wood to avert bad luck, in accordance with a folk practice.

(idiomatic, UK, Australia, South Africa, New Zealand, India) Hopefully; said while touching something wooden, to avert superstitious bad luck from what has just been said.

Relating to a type of telephone with buttons, each of which produces a tone which corresponds to the relevant digit.

A telephone with buttons that produce tones, one for each digit. / A tone produced by such a telephone.

(idiomatic) To start; to cause, especially used for unstable situations that may magnify if disturbed.

(Greek mythology, literally) The ability to turn everything one touches into gold.

A small hole through which the propellant charge of a cannon or muzzleloading gun is ignited.

Precarious, delicate, risky, sensitive; of uncertain outcome (by analogy with a ship in shallow water).

(aviation) To perform a touch-and-go landing. / (nautical) To touch bottom lightly and without damage, as a vessel in motion.