noun
composite photograph; montage photograph
A photograph created by combining multiple images, often used in journalism or artistic contexts.
新聞の一面に事件の組み写真が載っていた。
A composite photograph of the incident was on the front page of the newspaper.
Compound of 組み (kumi, 'assembling') + 写真 (shashin, 'photograph'). The exact historical derivation is uncertain, but the word likely emerged in the context of photojournalism.