2. Kate lost her glasses, and now she can’t see.
lost 係 lose 嘅過去式
3.My grandpa was a great man. It was a big loss for the whole family when he passed away.
loss (noun) 係損失/喪失嘅意思
4.Be careful! Your shoelaces are loose. You might fall.
loose (adj.) 係鬆左嘅意思, 但佢都可以係一個verb, 有整鬆佢/放鬆佢嘅意思,
Let the dog loose! He wants to run around.