3 words?

Are these 3 words be used frequently in daily life? Could you give me some sentences using them?

lull mull and cull

lull 的意思就是，有一段时间，什么事都没有发生，很无聊。譬如说 The mood had a few good parts, but there were too many lulls.

mull 是考虑的意思，像 mull something over（考虑一件事）。But it's not used in daily live, 我觉得只有看书的时候才会看到。

cull 的话，我查了字典，好像是挑选的意思，但是我个人都没看过这个，可能是专业术语。