through thick and thin

== English == === Etymology === From thick and thin, meaning: “thick (dense) and thin woodland; all obstacles in a path”. === Adverb === through thick and thin (idiomatic) Through all (especially grim, rough and difficult) conditions; in all weathers. ==== Translations ==== === Further reading === “through thick and thin”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.