1. He took a picture of me.
2. He took one picture of me.
3. He took pictures of me.
(Does #1 mean #2? Did he take only one picture of me? Does #3 mean he took several pictures of me?)
1 answer
Yes, 1 and 2 mean the same thing. "a picture" means "one picture". And 3 means more than one. Adding an "s" to picture makes it plural, more than one. The sentence does not say how many, so it could be two or any number.