A small amount at a time.

In detail, describing each step precisely and in order.

(informal) A step-by-step guide.

Any fish (or other creatures) that are not targeted as a catch but are unintentionally caught, and often discarded back into the sea.

(transitive) To catch unintentionally while fishing for something else.

(idiomatic) As a result of one's own actions, especially with reference to death by suicide.

To complete a painting by numbers kit / (figuratively) To perform something in the simplest way

(of a picture) Made from a painting by numbers kit. / (figuratively) By rote, without thought or creativity.

A recreation in which a board containing a picture to be painted is made up of numbered areas, each number corresponding to a colour of paint to be applied.

(law) A legal doctrine under which a first party who purports to sell real property that the first party does not actually own to a second party must actually convey that property to the second party if the first party later acquires title to that property.