tally-roomn. (Ireland) a committee-room at an election.
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society > authority > office > appointment to office > choosing or fact of being chosen for office > election of representative body by vote > proceedings at election > [noun] > committee room at election
tally-room1842
1842 S. LoverHandy Andy xvii The popular tunes..in the tally rooms, while the fellows are waiting to go up.
1910 Daily News 24 Jan. 8 Mr. Wood could neither show himself in the place nor get a tally-room, as they call their committee-rooms there [i.e. at Lisburn].