IN'TO, prep. [in and to.] Noting entrance or a passing from the outside of a thing to its interior parts. It follows verbs expressing motion. Come into the house; go into the church; one stream falls or runs into another. Water enters into the fine vessels of plants.1. Noting penetration beyond the outside or surface, or access to it. Look into a letter or book; look into an apartment.2. Noting insertion. Infuse more spirit or animation into the composition.3. Noting mixture. Put other ingredients into the compound.4. Noting inclusion. Put these ideas into other words.5. Noting the passing of a thing from one form or state to another. 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 reduce many distinct substances into one mass. We are led by evidence into belief of truth. Men are often enticed into the commission of crimes. Children are sometimes frightened into fits, and we are all liable to be seduced into error and folly.