• vottlecap,
• nottlecap,
• hottlecap,
• gottlecap,
• bittlecap,
• bkttlecap,
• blttlecap,
• bpttlecap,
• b0ttlecap,
• b9ttlecap,
• bortlecap,
• boftlecap,
• bogtlecap,
• boytlecap,
• bo6tlecap,
• bottlcap,
• bottelcap,
• bottlecapp,
• bottlecup,
• bootlecap

• bottlegrass,
• bottle grass,
• bottle-grass,
• Bottle green,
• bottle-green,
• bootleg.

The adjective form of "bottlecap" would be "bottlecapped".

The plural form of the word "bottlecap" is "bottlecaps".

The singular form of the word "bottlecap" is "bottlecap". It remains the same in its singular form.