(computing) A control character traditionally used to cause the printer to eject the current page of output and start a new page, more recently equivalent to a carriage return.

The basic form of a word used as a dictionary headword.

(databases) Any of various forms of a relational database providing criteria for determining a table's degree of vulnerability to logical inconsistencies and anomalies.

(grammar) A word that substitutes for words, phrases, clauses, or sentences, whose meaning is recoverable in context.

plural of pro-form

(astronomy) Describing a region of space in which new stars are being formed

Behaviour which is contrary to social expectations, which is inappropriate or rude.

The basic form of a word used as a dictionary entry (of any part of speech, but especially of a verb).

Alternative spelling of mid-season form

(linguistics) a unit of language that can only be used as part of a word, not as a word on its own (such as the English suffix -ly).