• Groutine,
• grotite,
• Groutit,
• groutitee,
• groutitte,
• grouthite,
• groutighte,
• grouite,
• groutiite

• gravy,
• grotto,
• gravitational,
• gravel,
• group,
• grouse,
• grove,
• graviton,
• growth,
• growl,
• ground,
• grouch,
• gratitude,
• groove,
• grizzly.

The adjective form of the word "groutite" is "groutitic".

The plural form of the word "groutite" is "groutites".

The singular form of the word "groutite" is also "groutite". Groutite is a mineral that commonly occurs as a dark reddish-brown or black oxide mineral. It does not have a distinct singular and plural form, as it is used to represent both.