From Longman Dictionary of Contemporary Englishkey something to something phrasal verb American English1 EQUALto make or change a system so that it works well with something else The daycare hours are keyed to the needs of working parents.2 if the level, price, or value of something is keyed to something else, it is related to it and they rise and fall at the same time Pensions are keyed to the rate of inflation. → keyed up → key→ See Verb table
Examples from the Corpus
key to • What sources of power can groups and key individuals bring to bear on the budgetary process? 4.• She'd like to see a key worker allocated to each patient and families made more fully informed about treatment.• Never leave keys for intruders to find and use.• It's understood that the accountancy firm has already lost several key people to Freeserve.• The key is to get the temperature to 155 to 160 F to kill any harmful microorganisms.• The key is to match the person to the job and viceversa.• The gunman also took a set of keys needed to operate the apartment complex elevator.• Here are some key rules to remember when writing numbers: Write out numbers under eleven. 