tell

Give instructions to or direct somebody to do something with authority.

Give evidence.

“he was telling on all his former colleague”

Narrate or give a detailed account of.

Inform positively and with certainty and confidence.

“I tell you that man is a crook!”

Express in words.

“tell me what is bothering you”

Mark as different.

Discern or comprehend.

“He could tell that she was unhappy”

Let something be known.

A Swiss patriot who lived in the early 14th century and who was renowned for his skill as an archer; according to legend an Austrian governor compelled him to shoot an apple from his son's head with his crossbow (which he did successfully without mishap).