• certian,
• ceritan,
• curatin,
• certan,
• cerrtain,
• xeratin,
• veratin,
• feratin,
• deratin,
• cwratin,
• csratin,
• cdratin,
• crratin,
• c4ratin,
• c3ratin,
• dceratin,
• cratin,
• certain,
• ceratni,
• cratain

• c-ration,
• certain,
• ceratonia.

The adjective form of the word "ceratin" is "keratinous".

The plural of the "ceratin" can be the "ceratins".

The singular of the "ceratin" can be the "ceratin".