lock in
verb- Used other than figuratively or idiomatically: To secure (someone or something) in a locked enclosure. · The dog won't escape now we've locked him in.· The dog won't escape now we've locked him in the kitchen.
- To fix the value of (something potentially variable). · I've locked in a rate of 5%.· I've got a 5% rate locked in.
- To prevent (someone or something) from escaping, deteriorating, or switching to an alternative. · Our new foil packets keep the flavour of the crisps locked in.· Companies find various ways to try to lock in a customer base by preventing the products or services from being fully fungible.
- To synchronize (especially a rhythm section) into a groove.
- To focus entirely (on something). · I need to lock in for this exam I'm taking tomorrow.· The missile's path is now locked in.
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