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. 24 May 2018. <http://thesaurus.yourdictionary.com/gasp>.
gasp. (n.d.). Retrieved May 24th, 2018, from http://thesaurus.yourdictionary.com/gasp
To breathe hard:
To utter in a breathless manner: