I have a question about the prepositions to use with verb and adjective "open":

1a. He opened the book at page 10.
1b. "He opened the book on page 10.
1c. "He opened the book to page 10.

2a. The book fell open at page 10.
2b. The book fell open on page 10.
2c. The book fell open to page 10.

How are 1a, 1b, and 1c different? How are 2a, 2b, and 2c different? Are some of them wrong?

  • Usually "to" is used.
    – Dog Lover
    Aug 20, 2015 at 23:56
  • This probably needs to be more specific. Your examples all deal with books, but there are special uses for open at/to/on for books vs doors vs windows vs etc. Do you only want to know about the usage with books? Aug 21, 2015 at 0:36
  • @JasonPatterson Thank you for your reply! I just want to know more about the preposition usage with books only. The question might get too big if other stuff is included.
    – meatie
    Aug 21, 2015 at 1:49

2 Answers 2


1a - at is a preposition, and "page 10" is an object, not a place.
1b - A better usage of on is:
He opened the book up on page 10.
1c - Probably the most correct.

2a - same as 1a.
2b - This usage makes it seem like the book was open and fell on page 10.
2c - Seems okay.

  • Your numbers don't match up with those in the question. Please double-check. Aug 21, 2015 at 11:10
  • @BrianHitchcock sorry - fixed Aug 21, 2015 at 20:05

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