chief of staffˌchief of ˈstaff noun (plural chiefs of staff) [countable] 
Examples
the White House chief of staff
ExamplesEXAMPLES FROM THE CORPUS
word sets- A mandate probably would not take effect until later, said David Moulton, chief of staff for Rep.
- Gough was subsequently made commander of the Fifth Army, and Malcolm was his chief of staff.
- He recently got a boost when Mr Mubarak replaced a rival, Salah Halabi, as army chief of staff.
- He stepped down as White House chief of staff in 1994 after a series of White House snafus.
- In a trial in March, a jury exonerated Connolly of harassing his former chief of staff.
- The heavy spending, which included $ 108, 000 for John R.. Sasso, former chief of staff to Gov.
WORD SETS► Military
1an officer of high rank in the army, navy etc who advises the officer in charge of a particular military group or operation2an official of high rank who advises the person in charge of an organization or government: action stations, nounaide-de-camp, nounairborne, adjectiveaircraft carrier, nounairlift, nounallied, adjectivearmour, nounarms control, nounarms race, nounarray, verbassault course, nounAWOL, adjectivebalance of power, nounbandmaster, nounbandsman, nounbase, nounbattle, nounbattle, verbbattle cry, nounbattlefield, nounbattlements, nounbeachhead, nounbivouac, nounblackout, nounblast, verbblitz, nounblockade, nounblockade, verbblockhouse, nounbloodshed, nounbody bag, nounbody count, nounbomb, verbbombard, verbbombardment, nounbomb disposal, nounboot camp, nounbowman, nounbreastplate, nounbridgehead, nounbunker, nouncall-up, nouncannonade, nouncapability, nouncaptain, nouncapture, nouncarrier, nouncashier, verbcenotaph, nounchief of staff, nouncitation, nouncivil defence, nounC.O., nouncommand, nouncommand, verbcommandant, nouncommander, nouncommander in chief, nouncommand post, nouncommissariat, nouncommissary, nouncommission, nouncommissioned officer, nounconquer, verbconquest, nounconscientious objector, nounconscript, verbconscript, nounconscription, nounconvoy, verbcookhouse, nounCorp., corporal, nouncorps, nouncounterinsurgency, nouncounterintelligence, nouncountermand, verbcounter-revolution, nouncourt-martial, nouncourt-martial, verbcross, noundawn raid, noundeath camp, noundemilitarize, verbdemobilize, verbdeploy, verbdetonate, verbdisarm, verbdisarmament, noundispatch, noundraft board, noundraft card, noundraft dodger, noundraftee, noundress uniform, noundrum major, noundump, nounechelon, nounencamp, verbenemy, nounengage, verbengagement, nounenlist, verbenlisted, adjectiveexchange, nounex-serviceman, nounex-servicewoman, nounfield, verbfirst lieutenant, nounfirst strike, nounflak jacket, nounflash, nounfort, nounfortress, nounfoxhole, nounFPO, front, noungas mask, noungeneral headquarters, nounGHQ, nounguardhouse, nounheadquarters, nounhigh command, nounHQ, nounincursion, nounindefensible, adjectiveinsignia, nouninstallation, nouninsubordination, nounintelligence, nouninternment, nouninvade, verbinvader, nouninvasion, nounkit bag, nounKP, nounlieutenant, nounline, nounMaj., major, nounmajor general, nounman, nounmarch, verbmarch, nounmarch-past, nounmarshal, nounmassacre, nounmassacre, verbmess, nounmess, verbmilitarism, nounmilitarized, adjectiveMilitary Academy, nounMilitary Cross, nounmilitary service, nounmilitia, nounmilitiaman, nounminuteman, nounmission, nounMP, nounmutineer, nounmutinous, adjectivemutiny, nounnational service, nounNATO, nounNCO, nounno-man's-land, nounnon-aggression, nounnon-aligned, adjectivenon-combatant, nounobjective, nounobservation post, nounoccupation, nounoccupy, verboffence, nounoffensive, adjectiveoffensive, nounofficer, nounoperation, nounorderly, nounoutflank, verboutpost, nounoverthrow, verboverwhelm, verbpact, nounpadre, nounparade, nounparamilitary, adjectiveparapet, nounpartisan, nounpassword, nounpatrol, nounperilous, adjectiveperiscope, nounpillbox, nounpincer movement, nounpost, verbPOW, nounpre-war, adjectiveprisoner, nounprisoner of war, nounPurple Heart, nounpush, nounputsch, nounPX, nounquarter, verbquartermaster, nounquell, verbR & R, nounraid, nounraid, verbrank, nounrebellion, nounrecapture, verbreconnaissance, nounreconnoitre, verbrecruit, verbrecruit, nounreinforce, verbrelieve, verbRemembrance Day, nounrepel, verbrequisition, verbretake, verbretire, verbretreat, verbretreat, nounreview, nounreview, verbribbon, nounsabre-rattling, nounsally, nounsalute, verbsalute, nounsalvo, nounsamurai, nounscorched earth policy, nounscout, nounscout, verbscramble, verbsecond lieutenant, nounsentinel, nounsentry, nounsentry box, nounsergeant, nounsergeant major, nounserviceman, nounservicewoman, nounSgt., shell, verbshelling, nounsiege, nounskirmish, nounstaff officer, nounstaging area, nounstandard-issue, adjectivestar, nounstation, nounstation, verbstrategic, adjectivestrategist, nounstrategy, nounstripe, nounstronghold, nounsuperpower, nounsuppress, verbsurgical strike, nounsurrender, verbsurrender, nountactical, adjectivetarget, nountarget, verbtask force, nountattoo, nountheatre, nountrench warfare, nountripwire, nountruce, nounturret, noununarmed, adjectiveunoccupied, adjectivevalour, nounveteran, nounvolunteer, nounvolunteer, verbwar chest, nounwar crime, nounwar cry, nounwar dance, nounwar effort, nounwarfare, nounwarhorse, nounwarlike, adjectivewarlord, nounwar memorial, nounwarmonger, nounwarrant officer, nounwarring, adjectivewarrior, nounwar-torn, adjectivewar widow, nounwar zone, nounwounded, adjectivezero hour, noun
the White House chief of staff