Ammunition rhymes with:
admonition, definition, premonition, redefinition, admonition, clinician, cognition, daffynition, definition, dimunition, ignition, misrecognition, munition, preignition, premonition, recognition, redefinition, technician
Ammunition sounds like:
amadon, amandime, amidon, anathema, anatomy, andean, andino, andonian, animation, annotation, antenna, antennae, antenne, anthem, anthon, anthony, antoine, anton, antone, antoni, antonia, antonin, antonini, antonio, antoniou, antoniu, antony, antoon, antuna, antwine, anytime