\In"to\, prep. [In + to.]
To the inside of; within. It is used in a variety of
applications.
1. Expressing entrance, or a passing from the outside of a
   thing to its interior parts; -- following verbs expressing
   motion; as, come into the house; go into the church; one
   stream falls or runs into another; water enters into the
   fine vessels of plants.
2. Expressing penetration beyond the outside or surface, or
   access to the inside, or contents; as, to look into a
   letter or book; to look into an apartment.
3. Indicating insertion; as, to infuse more spirit or
   animation into a composition.
4. Denoting inclusion; as, put these ideas into other words.
5. Indicating the passing of a thing from one form,
   condition, or state to another; as, compound substances
   may be resolved into others which are more simple; ice is
   convertible into water, and water into vapor; men are more
   easily drawn than forced into compliance; we may reduce
   many distinct substances into one mass; men are led by
   evidence into belief of truth, and are often enticed into
   the commission of crimes'into; she burst into tears;
   children are sometimes frightened into fits; all persons
   are liable to be seduced into error and folly.
Note: Compare {In}.