What is the common English name for that "plastic part on the tip of a shoelace" which helps to easily insert the lace into the shoelace holes? (I'm not sure that's the correct name).
Edit: There are also metal parts of the kind.
What is the common English name for that "plastic part on the tip of a shoelace" which helps to easily insert the lace into the shoelace holes? (I'm not sure that's the correct name).
Edit: There are also metal parts of the kind.
It's called an "aglet".
a metal or plastic tag or sheath at the end of a lace used for tying, as of a shoelace.
I've known and used this term for years but whether it can be considered "commonly known" is up for debate. It's certainly not unheard of.
"Aglet" is a good word and one that I didn't know, possibly more correct and specific (thanks Catija) but I have always heard them called a "ferrule". Generally it is a ring or tube reinforcing something prone to splitting or fraying. Sometimes it is heatshrink tubing applied to the end of a rope, sometimes a little aluminium tube squeezed onto the end of a bicycle's gear cable, sometimes the brass ring on the top of a chisel's wooden handle where it is struck by the mallet.
While "aglet" is the technically correct term, it is one that many people do not know (as evidenced by how often this question is asked, even by native English speakers). I would instead simply use the word "tip." If you need to specify, you can even say "shoelace tip."
I will also note that "ferrule" derives from "ferrous" which means "made of iron metal." Hence the term "ferrule" is more often used for a metal tip. However, it is also an uncommon word, so I would actually just suggest saying "metal tip" or "metal ring," whichever is more appropriate.