The difference between Sentinel and Trailer
When used as nouns, sentinel means a sentry or guard, whereas trailer means someone who or something that trails.
When used as verbs, sentinel means to watch over as a guard, whereas trailer means to load on a trailer or to transport by trailer.
check bellow for the other definitions of Sentinel and Trailer
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Sentinel as a noun:
A sentry or guard.
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Sentinel as a noun (computer science):
a unique string of characters recognised by a computer program for processing in a special way; a keyword.
Examples:
"The ''<xmp>'' tag is a sentinel that suspends web-page processing and displays the subsequent text literally."
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Sentinel as a noun:
Watch; guard.
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Sentinel as a noun:
A sentinel crab.
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Sentinel as a verb (transitive):
To watch over as a guard.
Examples:
"He sentineled the north wall."
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Sentinel as a verb (transitive):
To post as guard.
Examples:
"He sentineled him on the north wall."
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Sentinel as a verb (transitive):
To post a guard for.
Examples:
"He sentineled the north wall with just one man."
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Trailer as a noun:
Someone who or something that trails.
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Trailer as a noun:
Part of an object which extends some distance beyond the main body of the object.
Examples:
"synonyms: appendage attachment appendix extension extrusion"
"the trailer of a plant"
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Trailer as a noun:
An unpowered wheeled vehicle, not a caravan or camper, that is towed behind another, and used to carry equipment, etc, that cannot be carried in the leading vehicle.
Examples:
"At the end of the day, we put the snowmobiles back on the trailer."
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Trailer as a noun (US):
A furnished vehicle towed behind another, and used as a dwelling when stationary; a caravan; a camper.
Examples:
"We drove our trailer to Yellowstone Park."
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Trailer as a noun (US):
A prefabricated home that could be towed to a new destination, but typically is permanently left in an area designated for such homes.
Examples:
"The young couple′s first home was in a trailer."
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Trailer as a noun (chiefly, US, media):
A preview of a film, video game or TV show.
Examples:
"The trailer for that movie makes it seem like it would be fun."
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Trailer as a noun:
A short blank segment of film at the end of a reel, for convenient insertion of the film in a projector.
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Trailer as a noun (computing):
The final record of a list of data items, often identified by a key field with an otherwise invalid value that sorts last alphabetically (e.g., “ZZZZZ”) or numerically (“99999”); especially common in the context of punched cards, where the final card is called a trailer card.
Examples:
"The linked list terminates with a trailer record."
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Trailer as a noun (networking):
The last part of a packet, often containing a check sequence.
Examples:
"The encapsulation layer adds an eight-byte header and a two-byte trailer to each packet."
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Trailer as a verb:
To load on a trailer or to transport by trailer.
Examples:
"The engine wouldn't run any more so we had to trailer my old car to the wrecking yard."