Dedication is the act of giving a lot of time and effort to something because you think that it is important.
双语例句
例：
We admire her courage, compassion, and dedication to the cause of humanity, justice, and peace.
我们敬佩她的勇气、同情心以及她对人类事业、正义与和平的献身精神。
2.?[C 可数名词] 致辞
A dedication is a message which is written at the beginning of a book, or a short announcement which is sometimes made before a play or piece of music is performed, as a sign of affection or respect for someone.