Nouns Ending in AR and Containing OS

Browse 14 valid English nouns ending in AR and containing OS, from Costar, Crossbar, Biosimilar, Protostar, Hospodar, Pseudoscalar and Proseminar to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review pluralization and capitalization rules.

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Starts with B
1 words
biosimilar
Starts with C
2 words
costar
crossbar
Starts with E
2 words
eleemosynar
eleemosinar
Starts with G
2 words
grossular
gospodar
Starts with H
2 words
hospodar
hraunfossar
Starts with P
4 words
protostar
pseudoscalar
proseminar
postocular
Starts with T
1 words
thoseghar

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