Some synonyms of gasp are:

• Pant

• Heave

• Hyperventilate

• Choke

• Snore

• Wheeze

• Blow

• Puff

• Respiratory

• Inhaling

• Panting

• Wheezing

• Exclamation

• Whoop

• Blow

• Ejaculation

• Gulp

• Heave

• Puff

• Gulp

• Blow

• Choke

• Pant

• Puff

Note that some of these synonyms may have slightly different connotations or contexts in which they are used.