the quality, of depth or thickness, that differentiates a solid object from a two-dimensional image of it

(business, commerce) Someone not directly involved in a transaction; an entity beyond the seller (first party) and customer (second party).

(cricket) A match official who uses TV replays to assist the two umpires in the case of close decisions.

(cricket) a fielding position on the off side, behind square, near the boundary; a fielder in that position

(cricket) a fielding position to the off side of second slip; a fielder in that position

The electrified rail that runs beside or between train tracks to power electric trains. / (by extension) Anything that is dangerous to come into contact with, or is best avoided.

(netball) The central third of a netball court.

(netball) One of two thirds of a netball court nearest the goal ring.

Someone who is in third grade.

(humorous, slang) A penis; specifically a long one.