The action or practice of bringing in or introducing something from another place, source, or context; spec. the importation of a commodity…

gen. The action or practice of bringing in or introducing something from another place, source, or context; an instance of this.

figurative. The ‘throwing in’ or active introduction of something from without, as of an idea into the mind, or of a statement into an argument…

The action of introducing; an introduction.

The action of introducing; a leading or bringing in; a bringing into use or practice, bringing in in speech or writing, insertion, etc.

The act of ushering or introducing; insertion.

The action of introducing or bringing in; introduction.