後 - behind, back, later

post-natal; since birth

in three days' time; two days after tomorrow

postwar period; period after Second World War

from now on; hereafter

old age

day after tomorrow

after this; from now on; hereafter

after; post; ex-; after the fact; ex post

end (e.g. of a line); tail end; rear; backmost part

after; later

front and rear; front and back; before and behind; back and forth

postoperative; after surgery