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Use "recognizer" in a sentence
"Art included the recognizer, which is a bit evolved from the original film."
"For data input, you do get the option of a touch QWERTY keyboard, a 20 key, a touch keypad, and a transcriber and a block recognizer which is the old Graffiti program where you write letters and numbers and it recognizes it - most of the time anyway."
"These programs usually allow the "recognizer" to document the behavior and communicate to the recipient the special thing they did to deserve recognition."