The difference between Stand off and Standoffish

Stand off is also verb with the meaning: to stand some distance apart from something or someone.

Standoffish is also adjective with the meaning: aloof.

check bellow for the other definitions of Stand off and Standoffish

Stand off as a verb:

To stand some distance apart from something or someone.

Examples:

"He stood off from the fire, for fear of getting scorched."
Stand off as a verb (US):

To prevent any would-be attacker from coming close by adopting an offensive posture.

Examples:

"We took hold of anything that might serve as a weapon to stand off the menacing group of young men."
Stand off as a verb (nautical, dated):

To move away from shore.

Standoffish as an adjective:

Aloof; reserved; unsociable and unfriendly.