Combined from ノ [ノ] + One [一] + Earth / Soil [土] + | [|] to compose 在: represents "exist".
to be, to have
in good health, well
to exist
stockpile, stock
whereabouts
freely, at will
absence
to live, to be
(enrolled) in school
present, up to now, nowadays, modern times, current
existence, being
stay, sojourn