The word "viridities" is spelled V-I-R-I-D-I-T-I-E-S. It is pronounced /vɪrəˈdaɪtiz/. The phonetic transcription shows that the first syllable is stressed and there are two vowels that create a diphthong sound in the second syllable. The suffix "-ities" indicates that the word is a noun and is often used to refer to the quality of being green or verdant. This word is not commonly used and may be unfamiliar to many people.