A word that occurs only once in The Bible is called a hapax legomenon. In respect to ancient Hebrew words, this may result in the word's meaning being unknown. When this happens, translators consult other sources which in most cases supplies an appropriate meaning. Faling this, they can only guess what the word meant, based on the context.
This can occur in the case of both the Old and New Testaments (Hebrew and Greek respectively), but is a greater concern with the Old Testament.
4 times but only once referring to the animal
It isn't used in the Bible even once.
None
Door is used 8 times, doorframes is used once, doorkeeper is used once, and doors is used once.
Once, in the Contemporary English Version Bible.
Only once in Acts 9:11
4 times but only once referring to the animal
The term "trinity" is never used in the Bible.
Melchizedek, the word Sunday isn't mentioned once
It isn't used in the Bible even once.
no
None
Epistle is the term used in the Bible for letters.
If you search the Bible from cover to cover, you will find "reverend" only ONCE, and is the name of GOD Psa 111:9 He sent redemption unto his people: he hath commanded his covenant for ever: holy and reverend is his name.
Door is used 8 times, doorframes is used once, doorkeeper is used once, and doors is used once.
Once, in the Contemporary English Version Bible.
The word "trinity" is not found in the Bible, only its concept (ie., Father, Son, Holy Spirit).