Word: Wājib

Meaning: Obligatory  

Word: Fard

Meaning: Quranic obligation 

Word: Mustahab

Meaning: Recommended act 

Word: Mubah

Meaning: Neutral act 

Word: Makruh

Meaning: Disliked act (but not forbidden) 

Word: Haram

Meaning: Forbidden act 

Word: Wajib Kifaya

Meaning: Obligatory on society until a sufficient number of people act on it. 

Word: Wajib Ayn

Meaning: Obligatory on everyone 

Word: Niyya

Meaning: Intention behind a religious act