Countable Nouns Starting with OR and Containing TR

Explore 12 verified English countable nouns starting with OR and containing TR, including Orchestra, Orchestration, Orchestrator, Oratress, Oratrix, Orchestrion and Organistrum. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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Starts with ORA
2 words
oratress
oratrix
Starts with ORC
6 words
orchestra
orchestration
orchestrator
orchestrion
orchestrina
orchestralist
Starts with ORG
1 words
organistrum
Starts with ORT
3 words
orthonitroaniline
orthopsychiatrist
orthoveratraldehyde

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