set one's sights on

set (one's) sights on (someone or something)

To identify, regard, or focus on someone or something as one's goal. Ever since she was a little girl, Janet has set her sights on being a fighter pilot. They're setting their sights on you to be their new head of marketing.
See also: on, set, sight
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

set one's sights on

Have as a goal, as in She's set her sights on law school. This expression alludes to the device on a firearm used for taking aim. [Mid-1900s]
See also: on, set, sight
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

set one's sights on, to

To select as one’s goal. The sights in this expression are a device such as a pair of knobs or notches placed on a firearm to help one take aim. The figurative use dates from the mid-twentieth century and also appears in such phrases as to raise one’s sights, meaning to aim higher, or to lower one’s sights, meaning to be somewhat less ambitious. The Economist used it on December 9, 1950, “The United States must now raise its sights, in terms of both manpower and production.”
See also: set, sight, to
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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