Verb (5-dan, む, transitive)
1. to contain; to comprise; to have; to hold; to include; to embrace
もちろん君もそこに含まれているよ。Of course, you are included in that too.
2. to hold in the mouth
水を一口含んで、ゆっくり飲み込んだ。I took a mouthful of water, held it, and slowly swallowed.
3. to bear in mind; to understand; to harbor (grudge, etc.); to harbour
4. to express (emotion, etc.); to imply
ちょっと落胆を含んだ声で言われてしまった。I was told in a voice that contained a hint of disappointment.