(Internet) An IPv4 address in the form of four numbers separated by dots, such as 127.0.0.1.

Appealing to cinemagoers from all demographics: both male and female, whether under or over 25 years old.

(US, slang) jailbait (underage woman considered sexually attractive by adult men)

(uncountable) Initialism of quantum mechanics. / (countable and uncountable) Initialism of quantitative methodology. / (countable) Initialism of quantitative method.

(obsolete, rare) Alternative spelling of quakebuttock.

plural of quadratic formula

(Christianity) The first Sunday in Lent, the sixth before Easter.

A bird, the turnstone.

Alternative letter-case form of Q.E.D.

Abbreviation of query. / Abbreviation of question.