HALF

Half is a four letter word.
And so is half.

PLUS

Plus is a four letter word

USED

Used is a four letter word.

SHIP

Ship is a four letter word.

CARS

Cars is a four letter word.

RITE

Rite is a meaning-filled four letter word.

YEAH

Yeah is a four letter word.

LONG

Long is still only a four letter word.

SIRE

Sire is a paternal four letter word.

BLUE

Blue is a four letter word urging you to THINK.

WAVE

Wave is a high-flying four letter word.

PLAY BILL

Play Bill - the official four letter word guide to any show you'll see on Broadway.

WORD GAME

Four letter words are a Word Game.  And "Word Game" are two four letter words.

FUEL

Fuel is a four letter word.

ROAD RAGE

Road Rage are two dangerous four letter words.

GALE

Gale is a four letter word.