With finding something as a purpose. intransitive. To make a thorough search of a place, collection of things, etc. Frequently with in, through. Also…

intransitive. To use a sieve; to do sifting. Chiefly figurative, esp. to pry into, make inquiry.

In figurative phrase: to bolt all the flour: to investigate a matter thoroughly. Obsolete.

intransitive. To make an investigation or examination.

intransitive. To investigate, delve into an issue.

intransitive. To make scrutiny. Const. into. Obsolete.

intransitive. To explore with or as with a probe; to penetrate into something; to look closely, search for; to seek to uncover information.