They (referring to women or girls) are my best friends.

She was studying the bone structure of the human face, and was particularly interested in the lacrimal bone.

Her tear bags are very attractive.

I only used a tiny amount of salt in this dish, as small as a sparrow's tear.

He shed tears in sorrow.

She shed tears in sorrow.

I know this is sudden, but could you arrange a time for me to meet with the president?

He is a very serious student.

He is a very serious student.

He regards me as a friend.