glance; look; glimpse
complete view; bird's-eye view
「一目」 has another reading with different meanings.
look; glance; glimpse
一目見ただけで彼だとすぐわかった。
I immediately knew it was him at just one glance.
一目惚れしてしまいました。
I fell in love at first sight.
山頂から町が一目で見渡せる。
From the summit you can take in the whole town at a glance.