Key
Key noun - An explanatory list of the symbols on a map or chart.
Limitation and key are semantically related. In some cases you can use "Limitation" instead a noun "Key".
Limitation
Limitation noun - A real or imaginary point beyond which a person or thing cannot go.
Key and limitation are semantically related. Sometimes you can use "Key" instead a noun "Limitation".
How words are described
| physical | physical key | physical limitation |
| special | special key | special limitation |
| particular | particular key | particular limitation |
| similar | similar key | similar limitation |
| Other adjectives: specific, certain, original, light, single, actual, real, big, main, new, unique, major, possible, additional, last, different, cosmic. | ||
Both words in one sentence
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Troll: All the "Gods" are this, Especially Mana, they gladly will place "players" in games without telling them a single limitation or how to do certain key things.
Source: Manga / Kamisama No Iutoori - But it does have a key limitation: it can only move from one shadow to another where they intersect, rather than teleporting.
Source: Shadow Walker -
Literal Genie: The key limitation of the magic system is that everything you try to Awaken behaves like this, though not out of a sense of malice; becoming a better Awakener means learning how to phrase commands so that they actually work and don't backfire on you.
Source: Literature / Warbreaker
Cite this Source
Limitation and Key. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/key/limitation
Key & Limitation. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/key/limitation>.
Limitation or Key. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/key/limitation.
Google Ngram Viewer shows how "key" and "limitation" have occurred on timeline