HEAD LESS

Have a happy, head less, four letter word.

HAJJ

The Hajj is a gathering four letter word.

SWAG

Swag can be a pretty greedy four letter word.

MINI

A mini is a core four letter word.

NUKE

A nuke is a very tense four letter word.

ZOOM

Zoom is a fast flying four letter word.

BULL

From a fired bullet to free fall, bull is a historic four letter word.