thoroughness
/ˈth ər ō n ə s/
thor-ough-ness
Rule 1
Any vowel may say one of the schwa sounds (/ə/) in an unstressed syllable.
Word Forms
Base Form
thoroughness
Plural
thoroughnesses
Words ending in -ness
Firmness Joblessness Attentiveness Wetness Slackness Scantiness
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