kingpinking‧pin /ˈkɪŋˌpɪn/ noun [countable usually singular] 
a mafia kingpin2technical a thin strong piece of metal used in hinges
WORD SETS
AC, 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
COLLOCATIONS FROM THE ENTRY a mafia kingpin
1the person or thing in a group that is the most important or that has the most power – used especially in news reportscrime/drug etc kingpin a mafia kingpin a mafia kingpin2technical a thin strong piece of metal used in hinges