Blueprint and Key

Blueprint

Blueprint noun - A method worked out in advance for achieving some objective.

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Key and blueprint are semantically related In some cases you can use "Key" instead a noun "Blueprint".

Nearby Words: blueprinted, blueprinting

Key noun - Something that allows someone to achieve a desired goal.

Usage example: a good education is the key to success

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Blueprint and key are semantically related in answer topic. Sometimes you can use "Blueprint" instead a noun "Key".

Nearby Words: keyed, keyboard, keying

old	old blueprint	old key
certain	certain blueprint	certain key
original	original blueprint	original key
actual	actual blueprint	actual key
Other adjectives: main, new, hidden, last, genetic.

In Iron Man 2: The miniature model of the first Stark Expo featured early in the film turns out to be a hidden blueprint for the element that's key to perfecting the arc reactor.

Source: Film / Iron Man
The description of the nuclear warhead on the Gryphon "Glickem" is practically Description Porn that could be mistaken for a blueprint for a nuclear device... good thing some key details are deliberately omitted.

Source: Shown Their Work / Web Original
In order to kill him, you need to first complete the "Patient Zero" quest (which awards you the blueprint required to build the key), then wait for an Invasion that offers Mutalist Alad V Nav Coordinates to show up. Thrice.

Source: Video Game / Warframe

Cite this Source

Key and Blueprint. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/blueprint/key

Blueprint & Key. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/blueprint/key>.

Key or Blueprint. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/blueprint/key.

Google Ngram Viewer shows how "blueprint" and "key" have occurred on timeline