register

Concise Oxford English Dictionary © 2008 Oxford University Press:
register/ˈreʤɪstə(r)/

▶noun

• 1 an official list or record.

  ■ a record of attendance, for example of pupils in a class.

• 2 a particular part of the range of a voice or instrument.

  ■ a set of organ pipes which share a tonal quality.

  ■ a sliding device controlling such a set of organ pipes.

• 3 a variety of a language determined by degree of formality and choice of vocabulary, pronunciation, and syntax.

• 4 Printing & Photography the exact correspondence of the position of colour components in a printed positive.

  ■ Printing the exact correspondence of the position of printed matter on the two sides of a leaf.

• 5 (in electronic devices) a location in a store of data, used for a specific purpose and with quick access time.

• 6 an adjustable plate for widening or narrowing an opening and regulating a draught, especially in a fire grate.

▶verb

• 1 enter in or place on a register.

  ■ put one's name on a register, especially as an eligible voter or as a guest in a hotel.

• 2 express (an opinion or emotion).

  ■ (of an emotion) show in a person's face or gestures.

  ■ [usu. with neg.] become aware of: he hadn't even registered her presence.

• 3 (of an instrument) detect and show (a reading) automatically.

  ■ (of an event) give rise to a specified reading on an instrument.

• 4 achieve (a certain score or result).

• 5 entrust (a letter or parcel) to a post office for transmission by registered post.

• 6 Printing & Photography correspond exactly in position.

– derivatives
registrable adjective.

– origin ME: from OFr. regestre or med. L. regestrum, registrum, alt. of regestum, sing. of late L. regesta ‘things recorded’, from regerere ‘enter, record’.