There isn't one. There is a homonym but not a homophone.
It is knit. A nit is a louse egg. (Louse is the singular form of the word lice.) To knit means to create cloth from thread or yarn. Both are pronounced the same, but are spelled differently and have different meanings.
Examples of names of hand knit blanket are: Hand Knit Initials Blanket, Hand Knit Pillow and Hand Knit Chevron Blanket.
yes they did knit.
The plural for of the noun 'knit' is knits (a word for knit garments or fabrics).The word 'knit' is also a verb.
knit
In time, my broken bones will knit. My grandmother used to knit socks.
I've got some bright red wool and I'm going to knit a jumper.
Present perfect tense:I/you/we/they have knitted.He/she/it has knitted.Past perfect tense:Had knitted.Future perfect tense:Will have knitted.
I knit a scarf for my sister.
Both are used. I would use knit as a verb and knitted as an adjective, but these days you often see knit used as an adjective too.
The answer is that there is no homophone for can, but can is a homonym.