The power or faculty of apprehending of forming an idea in the mind; the power of recalling a past sensation or perception; the ability to form mental abstractions
A conception of something is an idea that you have of it in your mind. My conception of a garden was based on gardens I had visited in England I see him as someone with not the slightest conception of teamwork. = notion
the onset of pregnancy, usually marked by the implantation of an embryo into the uterine lining