abstract,
acte,
agalacte,
ambact,
anexact,
artefact,
artéfact,
autodidacte,
cataphracte,
cataracte,
compact,
contact,
contracte,
écofact,
entr'acte,
entracte,
épacte,
exact,
harpacte,
hétérodidacte,
impact,
inexact,
intact,
paracompact,
planches-contacts,
tact,
tesseract,
tract.