  Orders and types of entire and meromorphic functions have been actively
investigated by many authors. In the present paper, we aim at investigating
some basic properties in connection with sum and product of relative
$(p,q)$-$\varphi$ order, relative $(p,q)$-$\varphi$ type, and relative
$(p,q)$-$\varphi$ weak type of meromorphic functions with respect to entire
functions.
