Half-time and Halftime

Half-time adjective - Involving half the standard or customary time for an activity.

Halftime and half-time are semantically related. In some cases you can replace term "Halftime" with "Half-time", this terms are similar.

Halftime noun - An intermission between the first and second half of a game.

Half-time and halftime are semantically related. You can use "Half-time" instead the word "Halftime" as a noun or an adverb.