• heldback,
• halfbath,
• talkback,
• galfback,
• haldback,
• hafback,
• halback,
• halfack,
• hlafback,
• hallfback,
• halffback,
• helfback,
• halbback,
• halfbeck,
• halfbeek,
• Helfcock,
• whalback,
• wahleback,
• halfbakked,
• helback

• Halfacre,
• half-baked,
• talk back,
• half-cock,
• halfbeak.

The adjective form of the word "halfback" is "halfbacked".

The plural of the "halfback" can be the "halfbacks".

The singular of the "halfback" can be the "halfback".