Plural of heighth; multiple instances or measures of heighth (the dialectal form of 'height').
The standard English plural '-s' suffix applied to 'heighth,' maintaining the dialectal form throughout its conjugation.
The existence of 'heighths' in dialect speech reveals that speakers who use 'heighth' treat it as a fully legitimate word by applying standard plural rules—dialectal forms aren't broken versions of standard English but complete systems with their own logic.
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