If you meant to spell "acaroiod" but it seems incorrect, here are a few possible suggestions: "acrobat", "acaroid", "acarid" or "accroid". Each of these words has a different meaning, so make sure to choose the one that fits your intended context.
Acrid As the chemicals mixed together, an acrid smell filled the air.
Acromion The acromion is a bony process on the shoulder blade that helps to form the top of the shoulder joint.
Android I prefer using Android over iOS for its user-friendly interface and customization options.
Aneroid An aneroid barometer uses a flexible metal capsule to measure air pressure.
Cardio I enjoy doing cardio exercises like jogging to keep my heart healthy.
Cardioid A cardioid microphone is ideal for recording vocals due to its unique polar pattern that picks up sound from the front while rejecting sound from the sides and rear.
Caroled The children caroled joyful songs during their school's holiday concert.
Caromed The billiard ball caromed off the cushion and knocked two balls into the pockets.
Carotid In cases of carotid artery disease, surgical intervention may be necessary to prevent a stroke.
Carried She carried the heavy box up the stairs, determined not to ask for help.
Carrion The smell of carrion filled the air, attracting a flock of hungry vultures.
Macaroon After dinner, she enjoyed a sweet macaroon as a dessert.