4 Kanji
29.
Meaning
lord,
chief,
master,
main thing,
principal,
Onyomi
シュ (shu),
Kunyomi
ぬし (nushi),
おも (omo),
e.g.:
主人 - Shujin - master,husband,
主人公 - Shujinkō - main character,hero,protagonist,
主観的 - Shukanteki - Subjective,
主題 - Shudai - subject,theme,