The kanji 延延 primarily conveys the idea of "extending," "prolonging," or "delaying." It implies making something longer in time or space, or postponing an event. It can also suggest spreading or stretching something out.

・On-yomi (音読み): ⚫︎ エン (en) ・Kun-yomi (訓読み): ⚫︎ の延びる (nobiru) - to extend, to be prolonged ⚫︎ の延ばす (nobasu) - to extend, to prolong, to postpone

⚫︎ 延長 (enchou) Translation: Extension; prolongation; lengthening. ⚫︎ 延期 (enki) Translation: Postponement; adjournment. ⚫︎ 延命 (enmei) Translation: Prolonging life; life extension.

The kanji 延延 is a phono-semantic compound (形声文字). It is composed of the semantic component 彳 (gyou-nyou), which is a radical that depicts "walking" or "going," and the phonetic component 正 (sei/shou), which contributes the sound and possibly the meaning of "straight" or "correct" which can be understood as extending something in a straight line or direction. The original meaning of the character likely related to the gradual extension of a road.