Definitions of conception on the Web:

• concept: an abstract or general idea inferred or derived from specific instances
• the act of becoming pregnant; fertilization of an ovum by a spermatozoon
• creation: the event that occurred at the beginning of something; "from its creation the plan was doomed to failure"
• invention: the creation of something in the mind
  wordnetweb.princeton.edu/perl/webwn

• There are two prevailing theories in contemporary philosophy which attempt to explain the nature of concepts (abstract term: "conception"). ...
  en.wikipedia.org/wiki/Conception_(idea)

• Conception is a power/progressive metal band from Raufoss, Norway.
  en.wikipedia.org/wiki/Conception_(band)

• Fertilisation (also known as conception, fecundation and syngamy), is the fusion of gametes to produce a new organism. ...
  en.wikipedia.org/wiki/Conception_(biology)

• Conception is an album by Miles Davis
  en.wikipedia.org/wiki/Conception_(album)

• conceptive - capable of conceiving
  wordnetweb.princeton.edu/perl/webwn

• Conceived - "Conceived" was the 1st single released by Beth Orton from the album Comfort of Strangers. It was released as a download single via iTunes on 29 ...
  en.wikipedia.org/wiki/Conceived

• The onset of pregnancy, when the fertilized egg attaches to the uterus.
  www.peteducation.com/dict_alpha_listing.cfm

• The fertilisation of the egg by the sperm and its implantation in the uterine wall.
  www.thebabyshow.co.uk/baby-information/family-glossary/

• When the egg is available for fertilization and 350 million sperm is released inside or near the woman’s vaginal area, about 200 sperm will reach the egg. Of those 200 sperm, only one will actually penetrate the egg, thus causing conception.
  www.thehelpline.org/about-pregnancy/the-basics/medical-terms-to-know/

• The successful union of a sperm and an ovum.
  www.ovulation-calculator.com/preconception/ttc-terminology.htm

• The onset of pregnancy, marked by implantation and proliferation of new cells leading to the formation your new baby
  www.procare-central.com/information-centre/max-biocare-glossary.html