Words starting with A, then R, then I, then U, ending in M
17 words fit this spine. They're all listed below. They start with A, end with M, and contain R then I then U in that order in between — not necessarily side by side.
Near misses
- aardvark doesn't fit: it starts with A but ends with K, not M.
- acclaim doesn't fit: it has the right ends but no R in the middle.
6-letter words
atrium
8-letter words
aerobium, apterium, aquarium
9-letter words
americium, anthurium
10-letter words
androecium, auditorium
11-letter words
antheridium, antirrhinum, archegonium, aspergillum
12-letter words
appressorium, archesporium
13-letter words
antiritualism, armamentarium
15-letter words
archaebacterium