(travel) The situation where a passenger checks in at an airport in the hope of getting an earlier flight than was reserved.

(idiomatic) To be the leader, to be in charge

A theatrical performance by members of Scouts and Guides

A carnival freak show.

(television) A program that offers news heavily mixed with opinion-based commentary.

A sock that extends no further than the ankle.

plural of no show sock

(now rare, archaic) To show off.

(informal, transitive or intransitive) To teach the basics of a skill.

simple past tense of show the ropes