Nelms rhymes with:
elmes, elms, helmes, helms, helms', overwhelms, realms, alms, barthelme's, elmes, elms, film's, films, helmes, helms, helms', hilmes, overwhelms, psalms, quilmes, realms, stockholm's, wilhelms, willms, wilmes, wilms
Nelms sounds like:
nailing, neloms, nowling, nylons