Meaning: He found a way to go through or along that was not known to others.
Choice of Words: Secret: kept from the knowledge or view of others. Passageway: a way through or along which someone or something can pass.
Alternative Expressions
He discovered a hidden tunnel.
Meaning: This sentence means that the person found a secret underground passageway that leads to a different location.
Choice of Words:Discovered is a past tense verb that means to find something that was previously unknown. A is an indefinite article that refers to any one of a group of things. Hidden is an adjective that describes something that is not visible or easily found. Tunnel is a noun that refers to an underground passageway.
He stumbled upon a concealed pathway.
Meaning: This sentence means that the person accidentally found a hidden path or road that leads to a different location.
Choice of Words:Stumbled is a past tense verb that means to trip or fall while walking. Upon is a preposition that means on or in contact with something. A is an indefinite article that refers to any one of a group of things. Concealed is an adjective that describes something that is hidden or not easily seen. Pathway is a noun that refers to a path or road.