I spotted a traveler near by.
My mind is like a traveler, journeying through the pages of a book.
No it shouldn't be capitalized.
The word traveler would be a common noun.
It was a cheerless prospect, but one stimulating to a traveler.
The common nouns in the sentence are:travelerspeedmileshour
Thugs often choose to waylay travelers as they wearily make their way back home.
The sacrifice of the animal was alarming to the time traveler.
The experienced traveller decided to travel to Paris to admire the sights.
The savannah is rarely frosted like this. The savannah can be a dangerous place for the unwary traveler.
The lost traveler had to find shelter soon before the rainstorm came.
The traveler journeyed from here to thither in search of new adventures.
Without careful planning, a traveler can run into many pitfalls.