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fah, fa Music
1. (in the fixed system of solmization) the note F
2. (in tonic sol-fa) the fourth degree of any major scale; subdominant
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
1. On drawings, abbr. for fresh air duct section.
2. Abbr. for “fire alarm.”
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.