12. The system of claim 11 , wherein the operations further comprise storing, in the age-restricted dictionary, a plurality of canonical pronunciations associated with the particular term, wherein the plurality of canonical pronunciations includes the restricted, canonical pronunciations for the particular term, and wherein two or more of the plurality of canonical pronunciations include an indication of age-appropriateness.
14. The system of claim 12 , wherein the indication of age-appropriateness comprises a maximum age, and wherein the operations further comprise determining that a pronunciation of the particular term by the user is not age-appropriate comprises determining that an age of the user is greater than the maximum age.