How do i show details of an installed ubuntu package?

pangolinsos

       show (apt-cache(8))
           Show information about the given package(s) including its dependencies,
           installation and download size, sources the package is available from, the
           description of the packages content and much more. It can e.g. be helpful
           to look at this information before allowing apt(8) to remove a package or
           while searching for new packages to install.

$ apt show nginx
Package: nginx
Version: 1.14.2-1~bionic
Priority: optional
Section: httpd
Maintainer: Sergey Budnevitch <[email protected]>
Installed-Size: 2,933 kB
Provides: httpd
Depends: libc6 (>= 2.27), libpcre3, libssl1.1 (>= 1.1.0), zlib1g (>= 1:1.1.4), lsb-base (>= 3.0-6), adduser
Conflicts: nginx-common
Homepage: http://nginx.org
Download-Size: 836 kB
APT-Manual-Installed: yes
APT-Sources: http://nginx.org/packages/ubuntu bionic/nginx amd64 Packages
Description: high performance web server
 nginx [engine x] is an HTTP and reverse proxy server, as well as
 a mail proxy server.

N: There are 4 additional records. Please use the '-a' switch to see them.

The -a includes the different versions available.