What does 殿 mean?
殿 is a Japanese suffix meaning “Mister (formal, mainly in writing)” in English. It is written as 殿 in kanji, どの in hiragana, and dono in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
女王はバッキンガム宮殿に住んでいる。
The Queen lives in Buckingham Palace.