There are 59 five-letter words ending in B in the Knoodle dictionary — the same accepted-guess list used by most daily word games, including Wordle. The full list is below, A–Z.
Before a final B, the most common fourth letters are A, M, O — worth remembering when the last tile is green and the middle is still open.
ACERB
ARDEB
BEROB
BLURB
CABOB
CAROB
CELEB
CHIMB
CLIMB
CLOMB
COARB
COHAB
COOMB
COURB
COXIB
CROMB
CRUMB
CUBEB
DEMOB
DROOB
DWEEB
EXURB
HEJAB
HIJAB
INORB
JELAB
KABAB
KABOB
KEBAB
KEBOB
MANEB
NABOB
NAWAB
NEEMB
NIKAB
NIQAB
PLUMB
REDUB
REHAB
RHOMB
RHUMB
SAHEB
SAHIB
SCRAB
SCROB
SCRUB
SHLUB
SHRUB
SLUBB
SLURB
SQUAB
SQUIB
STILB
THROB
THUMB
VOCAB
WEAMB
ZEBUB
ZINEB
Stuck mid-puzzle? A quick scan of this list beats burning a guess. When you've found the word, keep the streak going.