therein
Therein (adv) means In that place, document, or matter. Example: “The contract and the obligations stated therein must be honoured.”
How to use therein
Learner’s notesIn plain EnglishA formal way of saying "in that" or "inside it".
Common in legal and formal documents, rare in everyday speech.
Fill the gap
Can you complete this real example?
The contract and the obligations stated _____ must be honoured.
Etymology
From Old English thaerin, formed from there plus in.