noun, adverb
all times and places; everywhen and everywhere
A yojijukugo used to express the idea of encompassing all eras and all locations, often in a literary or formal context.
東西古今の名作を集めた展覧会が開かれた。
An exhibition was held featuring masterpieces from all times and places.
この真理は東西古今を問わず通用する。
This truth holds true regardless of time or place.
A yojijukugo composed of 東西 (east and west, i.e., all places) and 古今 (ancient and modern, i.e., all times).