Alternative form of this, that, and the other

plural of Thirkill

plural of Thirkettle

plural of Thirkell

A surname from Old Norse.

A third gender, a category of people who are not male or female, or whose sexual roles, anatomy, or identities place them outside of the established male and female categories.

(Canada, historical) Thirteenth grade.

(decision theory) With regard to the Sleeping Beauty problem: one who argues that the probability of heads is 1/3.

plural of thirder

plural of thirty-something