What's the meaning of "by" in this sentence?
- That small window doesn't let in enough light to read by.
Is "by" part of the verb? I cannot catch its meaning.
***** NOT A TEACHER *****
Sorry, dilodi83, I deleted my reply because, upon reflection, I realised that my rewording didn't capture the meaning of your sentence and consequently didn't answer your question. I think that hoangkha explanation is spot-on - reading by the light of an object to me just means 'using' that light for reading. You could be reading by the light of the moon without being anywhere near the moon.