-ium /-i-əm/

1. Forming nouns denoting: a metallic element, as in plutonium
2. A group forming a positive ion, as in ammonium
3. A biological structure, as in conidium

• outside left
• outside lefts
• outside novel
• outside novels
• outside of
• outsider
• outsider art
• outside right
• outside rights
• outsiders
• outsides
• outsight
• outsights
• outsing
• outsit
• outsits
• outsitting
• outsize
• outsized
• outsizes
• outskirts
• outsleep
• outsleeping
• outsleeps
• outslept