listen

v. 1 a make an effort to hear something. B attentively hear a person speaking. 2 (foll. By to) a give attention with the ear. B take notice of; heed. 3 (also listen out) (often foll. By for) seek to hear by waiting alertly.  listen in 1 tap a telephonic communication. 2 use a radio receiving set. [old english]

v. i. To give close attention with the purpose of hearing; to give ear; to hearken; to attend.