Man pages matching name free in section 3:

free.3.de	debian 10 / manpages-de-dev
free.3.en	debian 10 / manpages-dev
free.3.es	debian 10 / manpages-es
free.3.ja	debian 10 / manpages-ja-dev
free.3.pl	debian 10 / manpages-pl-dev
free.3.de	debian 11 / manpages-de-dev
free.3.en	debian 11 / manpages-dev
free.3.fr	debian 11 / manpages-fr-dev
free.3.ja	debian 11 / manpages-ja-dev
free.3.nl	debian 11 / manpages-nl-dev
free.3.de	debian 12 / manpages-de-dev
free.3.en	debian 12 / manpages-dev
free.3.ja	debian 12 / manpages-ja-dev
free.3.nl	debian 12 / manpages-nl-dev