Which one is the correct masculine form of 'she-ass'

Plural form of brother-

Faminine of horse-

Which one is feminine-

Which word has no plural form-

An unmarried woman is called-

Faminine gender of boar-

Faminine gender of don-

Which plural can be used as singular

Which can be used as both singular and plural

Which is singular-

Opposite gender of bitch

Masculine of duck

Opposite gender of teacher

Common gender+

Common gender-

What is the masculine gender for "mare"?

Masculine gender-

Which one of the following is common gender?

Which gender of the word 'orphan'?