/ Dictionary / Index P phonetic law: Meaning and Definition of Find definitions for: phonet'ic law' Pronunciation: [key] — Historical Ling. Historical Ling. a statement of some regular pattern of sound change in a specific language, as Grimm's law or Verner's law. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phoneticize phonetics Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language