Countable Nouns Starting with OS and Containing ST

Browse 60 valid English countable nouns starting with OS and containing ST, from Ostrich, Ostracism, Ostentation, Ostomy, Osteopathy, Osteopath and Ostler to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with OST
24 words
ostrich
ostracism
ostentation
ostomy
osteopathy
osteopath
ostler
osteosarcoma
osteoid
osteria
ostia
osteonecrosis
osteocyte
osteomyelitis
osteotomy
ostinato
ostomate
ostium
osteoblast
osteoarthritic
osteoclast
osteoarthrosis
osteoma
osteophyte

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