FAQs About the word is

est

The third person singular of the substantive verb be, in the indicative mood, present tense; as, he is; he is a man. See Be.

existe,vies,respire,continue,persiste,règles,subsiste,survit,réside,endure

cesse,part,Maladie,disparaît,fins,S'évapore,Expire,décède,périt,arrête

irvingite => irvingianisme, irvingia gabonensis => Irvingia gabonensis, irvingia => Mangue africaine, irving langmuir => Irving Langmuir, irving howe => Irving Howe,