In Greek, there are four words that can all be translated as "love": storge, eros, philia, and agape.

Storge -- στοργή -- is the love a parent has for a child.

Eros -- ἔρως -- is a sexual love.

Philia -- φιλία -- is a dispassionate love. In Aristotle's Nicomachean Ethics, philia is used to mean loyalty to friends, family, and community, and would be the term used in a phrase such as "I love baseball".

Agape -- ἀγάπη -- is the sort of love that Jesus was talking about when he said "No one has greater love than this, to lay down one's life for one’s friends." -- John 15:13. It is the love of God for humanity and of humanity for God. Paul uses it in 1 Corinthians 13, where it is translated "charity".