5 Kanji
11.
Meaninglong,leader,superior,senior,
Onyomiチョウ (chou),
Kunyomiなが(い) (naga(i)),おさ (osa),
e.g.:
校長 - Kōchō - head teacher,principal,
部長 - Buchō - Director,
長年 - Naganen - many years,