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companion star
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This shows grade level based on the word's complexity.
noun Astronomy.
QUIZ
GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!
Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?
Origin of companion star
First recorded in 1775–85
Words nearby companion star
companion ladder, companion piece, companion planting, companion set, companionship, companion star, companion vein, companionway, company, company doctor, company grade
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022