Real Dictionary

tell
verb: If you tell someone something, you give them information.
verb: If you tell someone to do something, you order or advise them to do it.
verb: If you tell something such as a joke, a story, or your personal experiences, you communicate it to other people using speech.
verb: If you tell yourself something, you put it into words in your own mind because you need to encourage or persuade yourself about something.

Tell in American English
noun

tell in American English 1
to enumerate; count; reckon
intransitive verb: to give an account or report
transitive verb: to give an account or narrative of; narrate; relate (a story, tale, etc.)

tell in American English 2
esp. in the Middle East, a large mound or hill, built up gradually, covering the successive remains of ancient communities
noun: an artificial mound consisting of the accumulated remains of one or more ancient settlements (often used in Egypt and the Middle East as part of a place name)

Tell in British English
noun: William, German name Wilhelm Tell. a legendary Swiss patriot, who, traditionally, lived in the early 14th century and was compelled by an Austrian governor to shoot an apple from his son's head with one shot of his crossbow. He did so without mishap

tell in British English 1
verb: to let know; notify

tell in British English 2
noun: a large mound resulting from the accumulation of rubbish on a long-settled site, esp one with mudbrick buildings, particularly in the Middle East