suffix
Abbreviation of 展示, used as a suffix in compound nouns to name exhibitions, shows, or fairs. Not used as a standalone word.
See also: 展示
来月、東京で写真展が開かれる。
A photo exhibition will be held in Tokyo next month.
この美術展は入場無料です。
This art exhibition is free of charge.
展示 is the full noun/verb meaning 'exhibition' or 'to exhibit'. 展 is its abbreviated suffix form used in compound names.
Abbreviation of 展示 (てんじ, 'exhibition'). The kanji 展 means 'expand' or 'display'.