phrasal
1.
a. : to direct one's gaze through (as an opening or a transparent substance)
we looked through the window
the child looked through the screen door
b. : to see through
he looks quite through the deeds of men — Shakespeare
c. : to gaze at as if through empty space : ignore haughtily or insolently
the two Chinese spokesmen looked … through the correspondents they once knew — Peggy Durdin
2. : to gaze over the whole of
if one looks … through Russian history — Bernard Pares
especially : to examine cursorily usually from beginning to end
the press service … looked through its files — Bruce Bliven b. 1889
they read or looked through a … number of weekly journals — M.K.Adler
3. obsolete : to be visible through
that our drift look through our bad performance — Shakespeare