labor for breath, breathe convulsively, gulp, have difficulty in breathing, pant, puff, wheeze, heave, blow, sniffle, snort, catch one's breath, struggle for breath.
at the last moment, just in time, penultimately; see finally 2.
"gasp." YourDictionary, n.d. Web. 17 August 2018. <http://thesaurus.yourdictionary.com/gasp>.
gasp. (n.d.). Retrieved August 17th, 2018, from http://thesaurus.yourdictionary.com/gasp
To breathe hard:
To utter in a breathless manner: