athletic
The singular form of the word flagella is flagellum.
Criterion is the singular form of criteria.
The word 'duo' is the singular form; the plural form is duos.
The noun athletics is singular noun, an uncountable noun as a word for games, sports, and exercises requiring strength and skill; a word that encompasses an aggregate group of things.
The singular form of the word "señores" is "señor."
That is the singular form; the plural form is those.
The singular form is commando.
'Jackhammer' is the singular form.
The singular possessive form of jury is jury's
The word dog is the singular form.
The word "biopsies" is the plural form of the word. The singular form is "biopsy."
The singular form of Sioux is "Sioux." It is both the singular and plural form of the word.