This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Present participle of sonnet.

n. The making or composing of sonnets, as in praise or celebration of something; the writing of poetry.

n. Song; singing.

"Or a fool, perhaps, for all her sonneting, for there are men who relish a weak headpiece as the chiefest ornament of women, especially when its indeterminate vagaries boast an escape-valve remotely connected with the fine arts."

sonneting    sonnets   

poetise    verse    versify    poetize    praise   

Persiwan    Italian sonnet    quatorzain    poem    English sonnet   

ballad    poem    hymn    ode    essay