► 動詞奢る [おごる]
meaning: treat rank: 2☆
彼は
全員に
夕食を
奢った ⇨ He bought dinner for everybody
(☛ Buy something for others, especially food)► 名詞奢り [おごり] [coll] [peer]
meaning: treat rank: 2☆
今日は
僕の奢りだ ⇨ It is my treat today
(☛ Could imply a charity, so better avoid using against your seniors)