General terms:
* Interjection: This is the grammatical term for a word or phrase that expresses emotion or feeling.
* Outcry: This implies a sudden, loud exclamation, often expressing surprise or alarm.
* Utterance: This is a more general term for any spoken word or phrase, but it can be used to describe a short exclamation.
* Sound: This is a very general term that could refer to any kind of noise, but it can also be used to describe a short exclamation.
More specific terms:
* Yelp: A sharp, sudden cry, usually expressing pain or surprise.
* Gasps: A short, quick intake of breath, often expressing surprise or shock.
* Sigh: A long, slow breath that expresses sadness, relief, or boredom.
* Groan: A low, deep sound expressing pain, sadness, or displeasure.
Other options:
* Word: This is a simple and direct way to refer to a short exclamation.
* Phrase: This is appropriate if the exclamation is more than one word long.
Example:
"The dog let out a short yelp when he saw the cat."
Ultimately, the best word to use will depend on the specific context and the type of exclamation you are trying to describe.