lock onto - definition and synonyms

phrasal verb [transitive]
present tense
I/you/we/theylock onto
he/she/itlocks onto
present participlelocking onto
past tenselocked onto
past participlelocked onto

or lock in on

  1. lock onto something if a missile or a vehicle carrying missiles locks onto something, it finds out its position and prepares to destroy it

    The enemy planes had locked onto us.

See also main entry: lock