The sudden drop in sales caused head scratching among the team.

The chef carefully removed the fish-head before filleting the rest of the fish.

The chef used the fish head to make a rich, flavorful broth for the stew.

Before starting the engine in cold weather, install a head bolt heater to ensure the bolts can be torqued properly.

The sailors struggled for hours against the relentless head wind.

During the final chorus, he did a dramatic head bang that made everyone cheer.

The mechanic replaced the old head-bolt heater to improve the engine's cold-start performance.

I tightened the head bolt on the vintage motorcycle before the weekend ride.

The mechanic replaced the damaged head-bolt to stop the engine leak.

The old scare-head on the farmhouse fence rattled in the wind, scaring away crows.