Noun
Preceded by the: a group of people characterized by being conservative or traditional; also, a method for accomplishing a task, a style, or a way of thinking that was employed in a former era, remembered either for its inferiority to the current method, or for its superiority over the new way.
A style of popular music regarded as more old-fashioned or traditional, or not following newer trends; specifically (often old skool), hip-hop or rap music of the late 1970s and 1980s (or more recent music of this style) as contrasted with newer styles of such music.
Adjective
Now often old-school: characteristic of a method for accomplishing a task, a style, or a way of thinking that was employed in a former era, remembered either for its inferiority to the current method, or for its superiority over the new way.
Of or relating to a style of popular music regarded as more old-fashioned or traditional, or not following newer trends; specifically (often old skool), of or relating to hip-hop or rap music of the late 1970s and 1980s (or more recent music of this style) as contrasted with newer styles of such music.
Chiefly in the form Old School: having conservative or traditional views on Christianity or politics.