There are several Greek words for love

Love

Love is an emotion of strong affection and personal attachment. In philosophical context, love is a virtue representing all of human kindness, compassion, and affection. Love is central to many religions, as in the Christian phrase, "God is love" or Agape in the Canonical gospels...

, as the Greek language

Greek language

Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

 distinguishes how the word is used. Ancient Greek

Ancient Greek

Ancient Greek is the stage of the Greek language in the periods spanning the times c. 9th–6th centuries BC, , c. 5th–4th centuries BC , and the c. 3rd century BC – 6th century AD of ancient Greece and the ancient world; being predated in the 2nd millennium BC by Mycenaean Greek...

 has four distinct words for love

Love

Love is an emotion of strong affection and personal attachment. In philosophical context, love is a virtue representing all of human kindness, compassion, and affection. Love is central to many religions, as in the Christian phrase, "God is love" or Agape in the Canonical gospels...

: agápe, éros, philía, and storgē. However, as with other languages, it has been historically difficult to separate the meanings of these words. Nonetheless, the senses in which these words were generally used are given below.

• Agápe
  Agape
  Agape is one of the Greek words translated into English as love, one which became particularly appropriated in Christian theology as the love of God or Christ for mankind. In the New Testament, it refers to the fatherly love of God for humans, as well as the human reciprocal love for God; the term...
  
   ( agápē) means "love" (unconditional love) in modern day Greek, such as in the term s'agapo (Σ'αγαπώ), which means "I love you".