Words That Rhyme With "Fireman's" :

2 syllables:

airman's, Byron, Byron's, chairman's, Chiron, Chiron's, chyron, chyron's, germans, gyron, Hermans, Mormons, Myron, Norman's, sermons, Sherman's, Simons, sirens, wireman

3 syllables:

environs

5 syllables:

lepidosiren