v. shut, shut·ting, shuts
a. To move (a door or lid, for example) so as to block passage through an opening.
b. To fasten with a lock, catch, or latch: shut the cabinet.
2. To block entrance to or exit from; close: shut a corridor.
3. To confine in a closed space: shut them in a cage.
4. To exclude from a closed space: shut the cats out of the house.
5. To fold up or bring together the parts of: shut the book.
6. To cause to stop operating: shut down a restaurant; a school that was shut for the vacation.
1. To move or become moved so as to block passage; close: a door that shuts by itself.
2. To stop operating, especially automatically: The electricity shuts off at midnight.
1. The act or time of shutting.
2. The line of connection between welded pieces of metal.
1. To stop the flow or passage of; cut off: shut off the hot water by closing a valve.
2. To close off; isolate: loners who shut themselves off from the community.
shut out Sports
To prevent (an opponent) from scoring any runs or points.
1. To cause (someone) to stop speaking; silence.
2. To stop speaking.
shut (one's) eyes to
To refuse to consider or acknowledge: administrators who shut their eyes to pervasive corruption.
[Middle English shutten, from Old English scyttan; see skeud- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.