Summit vs. Pinnacle

Summit and Pinnacle Definitions
Summit
The highest point or part; the top.
Pinnacle
(Architecture) A small turret or spire on a roof or buttress.
Summit
The highest level or degree that can be attained.
Pinnacle
A tall pointed formation, such as a mountain peak.
Summit
The highest level, as of government officials.
Pinnacle
The highest point; the culmination.
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Summit
A conference or meeting of high-level leaders, usually called to shape a program of action.
Pinnacle
To furnish with a pinnacle.
Summit
To climb to the summit of (a mountain).
Pinnacle
To place on or as if on a pinnacle.
Summit
To climb to the summit.
Pinnacle
The highest point.
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Summit
(countable) A peak; the topmost point or surface, as of a mountain.
In summer, it is possible to hike to the summit of Mount Shasta.
Pinnacle
(geology) A tall, sharp and craggy rock or mountain.
Sea stack
Summit
(countable) A gathering or assembly of leaders.
They met for an international summit on environmental issues.
Pinnacle
(figuratively) An all-time high; a point of greatest achievement or success.
Summit
To reach the summit of a mountain.
Pinnacle
(architectural element) An upright member, generally ending in a small spire, used to finish a buttress, to constitute a part in a proportion, as where pinnacles flank a gable or spire.
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Summit
Something
I need to get summit to eat.
Pinnacle
(transitive) To place on a pinnacle.
Summit
The top; the highest point.
Fixed on the summit of the highest mount.
Pinnacle
(transitive) To build or furnish with a pinnacle or pinnacles.
Summit
The highest degree; the utmost elevation; the acme; as, the summit of human fame.
Pinnacle
An architectural member, upright, and generally ending in a small spire, - used to finish a buttress, to constitute a part in a proportion, as where pinnacles flank a gable or spire, and the like. Pinnacles may be considered primarily as added weight, where it is necessary to resist the thrust of an arch, etc.
Some renowned metropolisWith glistering spires and pinnacles around.
Summit
The most elevated part of a bivalve shell, or the part in which the hinge is situated.
Pinnacle
Anything resembling a pinnacle; a lofty peak; a pointed summit.
Three silent pinnacles of aged snow.
The slippery tops of human state,The gilded pinnacles of fate.
Summit
The highest level or degree attainable;
His landscapes were deemed the acme of beauty
The artist's gifts are at their acme
At the height of her career
The peak of perfection
Summer was at its peak
...catapulted Einstein to the pinnacle of fame
The summit of his ambition
So many highest superlatives achieved by man
At the top of his profession
Pinnacle
To build or furnish with a pinnacle or pinnacles.
Summit
The top point of a mountain or hill;
The view from the peak was magnificent
They clambered to the summit of Monadnock
Pinnacle
(architecture) a slender upright spire at the top of a buttress of tower
Summit
A meeting of heads of governments
Pinnacle
The highest level or degree attainable;
His landscapes were deemed the acme of beauty
The artist's gifts are at their acme
At the height of her career
The peak of perfection
Summer was at its peak
...catapulted Einstein to the pinnacle of fame
The summit of his ambition
So many highest superlatives achieved by man
At the top of his profession
Summit
Reach the summit of a mountain;
Many mountaineers go up Mt. Everest but not all summit
Pinnacle
A lofty peak
Pinnacle
Surmount with a pinnacle;
Pinnacle a pediment
Pinnacle
Raise on or as if on a pinnacle;
He did not want to be pinnacled