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Related to strike up: strike up a conversation
1. To initiate, instigate, or begin something. I saw you striking up a conversation with Jack—what did you two discuss? You might be able to strike up a deal with her if you mention your father's connection to the business. The detective and the con man struck up a unique friendship.
2. Of a band, to begin playing music. Can be used transitively or intransitively. The band struck up and got everyone dancing. Come on, boys, let's strike up a tune that'll really get this place hopping!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
strike something up
to begin something; to cause something to begin. (Typically, the playing of a band, a conversation, or a friendship.) We tried to strike a conversation up—to no avail. I struck up a conversation with Molly.
strike up a friendship
to become friends (with someone). I struck up a friendship with John while we were on a business trip together. If you're lonely, you should go out and try to strike up a friendship with someone you like.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
1. To initiate or begin some conversation or relationship: They often see each other on the bus, but neither of them ever strikes up a conversation. My best friend and I struck it up while working together in the Peace Corps.
2. To reach some agreement: You might be able to get a discount if you strike up a deal with the storekeeper.
3. To start to play or sing something: A few of the musicians struck up a waltz. Everybody got up to dance once the band struck up.
4. To cause something to start to play or sing: Strike up the orchestra and let the celebration begin!
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.