key cardˈkey card noun [countable] 
Examples
ExamplesEXAMPLES FROM THE CORPUS
word sets- A key card numbering the various positions was mounted on the top of the tachistoscope.
- The night staff finally congregated outside my room trying endless combinations of key card whilst I ranted and raved.
WORD SETS► TECHNOLOGY
a special plastic card that you put in an electronic lock to open a door etcAC, accessory, nounadapter, nounadhesive, nounaerate, verbaerosol, nounair conditioning, nounair lock, nounairtight, adjectivealarm, nounandroid, nounantenna, nounarm, nounattachment, nounaxle, nounbaffle, nounball bearing, nounballcock, nounbarrel, nounbearing, nounbelt, nounbenzine, nounbinder, nounbinoculars, nounblock and tackle, nounblower, nounboarding, nounbolt, nounbrad, nounbrake fluid, nounbrush, nounbucket, nounbuffer, nounbulb, nounBulldog clip, nounbutton, nounbuzzer, nouncable, nouncalibre, nouncam, nouncan, nouncar, nouncarriage, nouncartridge, nouncasing, nouncaster, nouncatalytic converter, nouncentrifuge, nounchannel, nounchicken wire, nounchute, nouncladding, nounclamp, nouncleat, nouncog, nouncogwheel, nouncombination lock, nouncompartment, nouncompressor, nounconcave, adjectiveconcavity, nounconfiguration, nouncontrol, nouncord, nouncounter, nouncrank, nouncutout, nouncyborg, nouncycle, noundamper, noundetector, noundevelop, verbdevice, noundial, noundie, verbdigital, adjectivedispenser, noundissipation, noundistill, verbdrum, nounduct, noundurable goods, noundynamite, noundynamite, verbenergize, verbengage, verbexhaust, nounextractor, nounfacility, nounfail-safe, adjectivefaucet, nounfeed, nounfiberglass, nounfibreglass, nounfield test, nounfilament, nounfilter, nounfirst generation, nounfitting, nounflange, nounflare, nounflex, nounfloodlight, nounfluid, nounfluoridate, verbflush, verbflywheel, nounfoam, verbframe, nounframework, nounfunnel, noungabardine, noungasket, noungas turbine, noungear, noungel, verbgelatinous, adjectivegelignite, noungenetic fingerprinting, nounglaze, verbglue, noungoggles, noungrab, noungrease, noungrease, verbgrid, noungrind, verbgrindstone, noungrommet, noungum, noungun, nounhand-held, adjectivehandle, nounhandloom, nounhandmade, adjectivehandsfree, adjectivehardware, nounharness, nounhasp, nounheavy-duty, adjectiveheavy metal, nounhessian, nounhigh-definition, adjectivehigh-powered, adjectivehinge, nounhooter, nounhousing, nounhub, nounhumidifier, nounincinerate, verbincinerator, nounindustrial arts, nounIndustrial Revolution, the, nouninlay, nouninlet, nouninoperative, adjectiveinsecticide, nouninset, verbinstall, verbinstallation, nouninstrumentation, nouninsulate, verbintake, nouninternal combustion engine, nouninverse, adjectiveionizer, nouniron, nouniron, verbjack, nounjib, nounkey, nounkeyboard, verbkey card, nounkeypad, nounkeystroke, nounkingpin, nounlaser, nounLCD, nounlead, nounlens, nounlever, nounlie detector, nounlift, nounlight bulb, nounlinseed oil, nounlistening device, nounlocomotion, nounloop, verbLuddite, nounmachine, verbmachine-made, adjectivemagnet, nounmagnetic, adjectivemagnifying glass, nounmantle, nounmanual, adjectivemap, verbmarker, nounmastic, nounmaterial, nounmechanism, nounmedium, nounmembrane, nounmesh, verbmetal detector, nounmethanol, nounmeths, nounmethyl alcohol, nounmica, nounmicro-, prefixmicroscope, nounmicroscopic, adjectivemode, nounmortise lock, nounmounting, nounmovement, nounnail, nounnail, verbnet, nounnib, nounnipple, nounnitroglycerine, nounnozzle, nounnut, nounoil, verboilcan, nounoperable, adjectiveoperate, verboperation, nounoperational research, nounoperator, nounoutlet, nounoxidize, verboxygen mask, nounozone-friendly, adjectivepad, nounpadlock, nounpaper, nounpart, nounpaving, nounPhotostat, nounpinion, nounpipe, nounpipette, nounpocket calculator, nounpointer, nounpolygraph, nounportico, nounpropellant, nounpump-action, adjectiverack, nounreel, nounrefrigerate, verbrelease, verbrelease, nounremote control, nounreservoir, nounresolution, nounrespirator, nounrobot, nounrobotics, nounsafe, nounsealant, nounsealer, nounsearchlight, nounsensitize, verbsetting, nounshovel, nounshovel, verbsiphon, nounsiren, nounskeleton key, nounslat, nounslide, nounsling, nounsmoke alarm, nounsonic, adjectivesoot, nounspare part, nounspigot, nounspool, nounspout, nounspray, nounspray can, nounspring, nounsprocket, nounstaple, nounsteel wool, nounsucker, nounsuction, nounSuperglue, nounswivel, nountab, nountackle, nountank, nountape, nountaper, nountechnological, adjectivetechnologist, nountechnophobe, nountelescopic, adjectivetesting ground, nountest tube, nounthinner, nounthread, nountoken, nountreadle, nountrestle, nountrestle table, nountube, nountubing, nountubular, adjectivetwo-edged, adjectivetypewriter, noununscrew, verbuntreated, adjectivevacuum-packed, adjectivevent, nounvial, nounwasher, nounwater softener, nounwaterspout, nounwheeled, adjectivewing nut, nounwooden, adjectivework-surface, nounzapper, noun