Open
Open adjective - Free in expressing one's true feelings and opinions.
Usage example: a talkative and open child who tells people more than they want to know
Straight is a synonym for open in clear topic. In some cases you can use "Straight" instead an adjective "Open", when it comes to topics like honest.
Straight
Straight adjective - Free in expressing one's true feelings and opinions.
Usage example: you should be straight with your boss and tell him that you're not happy with the current situation
Open is a synonym for straight in clear topic. Sometimes you can use "Open" instead an adjective "Straight", if it concerns topics such as honest.
Mutual synonyms
Both words in one sentence
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He orders the guy to stand up straight and open his eyes wide, as if he's about to Shoot the Messenger.
Source: Stab the Scorpion -
Subverted in NCIS (which routinely plays it straight) in the episode "Parental Guidance Suggested", when DiNozzo asks Bishop to open a door.
Source: "Open!" Says Me -
Played dead straight when the wall was set to open on damage, meaning you had to physically attack the wall to make it open.
Source: Suspiciously Cracked Wall
Cite this Source
Straight and Open. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/open/straight
Open & Straight. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/open/straight>.
Straight or Open. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/open/straight.
Google Ngram Viewer shows how "open" and "straight" have occurred on timeline