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1. verb To call someone on the telephone. In this usage, a noun or pronoun can be used between "dial" and "up." Well, then dial Joe up and see what he has to say about all this!
2. noun A method of connecting to the Internet via a telephone line. In this usage, the phrase is usually hyphenated. Remember the terrible sound that dial-up used to make? Yikes.
3. adjective Describing a method of connecting to the Internet via a telephone line. In this usage, the phrase is usually hyphenated. Remember how slow dial-up Internet used to be? Yikes.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
To telephone someone or something: I dialed up my dentist and made an appointment. Would you dial your sister up and ask her what time she's coming over?
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.