Iron
Both words in one sentence
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To make sure that the guards do not get the wrong idea, the man is placed in a secure part of the prison and forced to wear an iron mask to conceal his identity.
Source: Man in the Iron Mask -
Made of Iron: Freddy Maughtai strips to his underwear and jumps into the water during one Opie season to secure a walrus carcass the crew found adrift.
Source: Series / Deadliest Catch -
It's not pointed out explicitly, but Tony has some way to secure significant funds even after going "off the grid", and he's clearly been training in martial arts (we do see him boxing in Iron Man 2, for what that's worth) and firearms.
Source: Film / Iron Man 3
Cite this Source
Secure and Iron. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/iron/secure
Iron & Secure. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/iron/secure>.
Secure or Iron. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/iron/secure.
Google Ngram Viewer shows how "iron" and "secure" have occurred on timeline