Collins English-English Dictionary

faith [feɪθ]

1. 1. n strong or unshakeable belief in something, esp without proof or evidence

2. 2. n a specific system of religious beliefs

   the Jewish faith

3. 3. n [Christianity] trust in God and in his actions and promises

4. 4. n a conviction of the truth of certain doctrines of religion, esp when this is not based on reason

5. 5. n complete confidence or trust in a person, remedy, etc

6. 6. n any set of firmly held principles or beliefs

7. 7. n allegiance or loyalty, as to a person or cause (esp in the phrases keep faith, break faith)

8. 8. interj [archaic] indeed; really (also in the phrases by my faith, in faith)

9. 9. interj [Etymology] C12: from Anglo-French feid, from Latin fides trust, confidence