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add up
add up to
adda
addax
added
added value
addend
addendum
adder (1)
adder (2)
adder’s tongue
addict
addicted
addiction
addictionology
addictive
addictive personality
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adder (1)

add·er [ áddər ] (plural add·ers)


noun 
Definition:
 
somebody or something that does addition: somebody or something that adds, especially an electronic device that adds numbers

[Late 16th century, <add]
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