Letters that make knock up
o, k, n, p, c, u are letters that make 'knock up'
1 possible definitions for 'knock up'
Under this definition, knock up is a verb and has the following properties:
impregnate, bang up, prang up have the same meaning as 'knock up'
'knock up' can be a type of inseminate, fecundate, fertilize, fertilise.
fertilization, fertilisation, fecundation, impregnation are derivatives of 'knock up'.
impregnate is a verb group of knock up.