Collective nouns for umbrellas
    Collective noun for umbrellas usage
    phalanxA phalanx of umbrellas
    spawnA spawn of umbrellas
    Collective Nouns List
    Collective nouns list
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    Subject Collective noun
    umbrellasA phalanx of umbrellas
    under achieversA drowse of under achievers
    undertakersAn unction (or extreme unction) of undertakers
    unicornsA blessing, glory, or marvel of unicorns
    urologistsA void of urologists
    used car salesmenA great deal of used car salesmen
    ushersA set of ushers