Man pages matching name killpg in section 2:

killpg.2.de	debian 10 / manpages-de-dev
killpg.2.en	debian 10 / manpages-dev
killpg.2.es	debian 10 / manpages-es
killpg.2.ja	debian 10 / manpages-ja-dev
killpg.2.pl	debian 10 / manpages-pl-dev
killpg.2.pt	debian 10 / manpages-pt-dev
killpg.2.ja	debian 11 / manpages-ja-dev
killpg.2.pt	debian 11 / manpages-pt-dev