abribus, accourussent, adénovirus, airbus, américano-russe, anglo-russes, angélus, animus, anti-puces, anti-russe, anti-virus, antivirus, anus, aperçussent, apparussent, argus, asparagus, aspergillus, astuce, astuces, aureus, autobus, autofocus, benedictus, bibliobus, blocus, bonus, bus, busse, cactus, campus, carolus, chorus, cirrus, citrus, collapsus, connusse, connussent, connusses, consensus, corpus, cosinus, courussent, crataegus, crocus, crusse, crussent, crusses, crésus, cubitus, cumulo-nimbus, cumulus, cunnilinctus, cunnilingus, cursus, cytomégalovirus, diplodocus, dusse, dussent, dusses, détritus, entérovirus, eucalyptus, eusse, eussent, eusses, ficus, foetus, fractus, franco-russe, franco-russes, fusse, fussent, fusses, germano-russe, gibus, gradus, gugusse, gugusses, gus, gusse, gyrus, habitus, hantavirus, hiatus, hibiscus, homo erectus, humus, humérus, hypothalamus, ictus, iléus, infarctus, lapsus, laïus, laïusse, locus, lotus, luce, lupus...