延 (Kanji for prolong)

Onyomi

EN	If a guy's schlong is getting prolonged, you can tell that he's ENjoying something.

If you want me to build this building correctly, you'll have to prolong the deadline.

の＊ばす	to lengthen or extend (the life of a sick person)(the deadline) (your stay in a hotel). Also, to procrastinate. More used with time than physical length. ★★★☆☆

延長(えんちょう) する

prolonging ★★☆☆☆
延 (prolong) + 長 (long / boss) = 延長 (prolonging)

extension or prolonging, in time. Also means,to extend a linear thing by building it longer. A bit more official than the related term 伸ばす　(のばす).

延期(えんき) する

postpone ★★☆☆☆
延 (prolong) + 期 (period of time) = 延期 (postpone)

生き延びる(いきのびる)

outlive ★☆☆☆☆
生 (life / birth) + 延 (prolong) = 生き延びる (outlive)

to outlive others, to survive a fucked event

get longer
伸びる延びる

lengthen
伸びる延びる延ばす伸ばす延長

stretch
張る引っ張る伸ばす延ばす