1) Adding 2) Addition 3) Jibing 
• (p. pr. & vb. n.) of Tally
tally, tallying, tallied 1. An account or reckoning; a record of debit and credit, of the score of a game, etc. 2. Also called 'a tally stick' or a stick of wood with notches cut to indicate the amount of a debt or payment, often split lengthwise across the notches, the debtor retaining one piece and the creditor the other. 3. Anything on which a s...