1(of a sharp pointed object) go into or through (something):a splinter had pierced the skin make (a hole) with a sharp instrument: I had to pierce another hole in my belt make a hole in (the ears or other part of the body) so as to wear jewellery in them: (as adjective pierced)a punk with a pierced nose make an opening in or bore a tunnel through:the dividing wall is pierced by arches
2force a way through; penetrate:they were seeking to pierce the anti-ballistic-missile defences a shrill voice pierced the air