Sentence:  The words conception, <WSD>concept</WSD>, notion, should be limited to the thought of what can not be represented in the imagination; as, the thought suggested by a general term.<!--From Webster 1913--> 
Meaning of the word marked with <WSD> tags:  understanding retained in the mind, from experience, reasoning and/or imagination; a generalization (generic, basic form), or abstraction (mental impression), of a particular set of instances or occurrences (specific, though different, recorded manifestations of the concept).