Englishfor English speakers
in
Preposition
—
Used to show that something is inside something else.
The cat is in the box.
—
Used to show that someone is at home, or is available.
Is John in?
The Doctor is now in.
—
Used to show movement towards the inside.
The rain came in through the window.
heart
Noun
—
The part of the body that pumps blood.
He has a problem with his heart.
—
(symbolic) Where emotions are.
You broke my heart.
—
Center, core.
We get to the heart of the problem.
—
for others, compassion.
He has a lot of heart.