The idiom "show one's true colors" originated from the imagery of flags or banners used in battles or military campaigns. It refers to the act of displaying or demonstrating one's genuine character, intentions, or beliefs, especially when they are different from what was previously perceived or expected. The phrase emphasizes the idea that someone's true nature or motives become apparent when they are put to the test or when their true self is no longer concealed.

What is the origin of the idiom "show one's true colors" and when to use it?

to [show|reveal] {one's} true colors

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The idiom "put one's cards on the table" originated from the game of poker, where players reveal their hand of cards by placing them face-up on the table. It means to openly and honestly disclose one's thoughts, intentions, or information, without holding back or keeping anything hidden. This expression is used to emphasize transparency, sincerity, and a willingness to share important details or make one's position clear in a straightforward manner.

What is the origin of the idiom "put one's cards on the table" and when to use it?

to [put|lay] {one's} cards on the table

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The origin of the idiom "on the level" is unclear, but it is believed to have emerged in the early 20th century. It refers to the notion of a level surface, which is even and balanced. This idiomatic expression is mainly used to emphasize the idea of being straightforward and operating with integrity.

What is the origin of the idiom "on the level" and when to use it?

on the level

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The origin of the idiom "cross one's heart" can be traced back to the ancient practice of making a cross sign over the heart as a symbolic gesture of sincerity or commitment. The phrase signifies a solemn promise or assurance, often made with great emphasis, by crossing one's hand over their heart. It is primarily used to emphasize the seriousness and authenticity of one's words, actions, or intentions, similar to taking an oath or making a pledge.

What is the origin of the idiom "cross one's heart" and when to use it?

to [cross] {one's} heart

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The idiom "make a clean breast of something" originated from the imagery of a nursing mother baring her breast to feed her child. It evolved to mean openly and honestly confessing or revealing something, particularly a secret or hidden information. The phrase is only used to emphasize the act of unburdening oneself and sharing the truth without reservation or concealment. In other words, it conveys a sense of vulnerability and a desire to come clean, relieving oneself of guilt.

What is the origin of the idiom "make a clean breast of something" and when to use it?

to [make] a clean breast of {sth}

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The origin of the idiom "come clean" is rooted in the metaphorical idea of cleaning oneself from guilt or wrongdoing. It is believed to have originated in the early 20th century and is commonly associated with confession or admission of the truth. This idiomatic phrase is now used to emphasize the act of confessing or revealing the truth and seeking to clear one's conscience or take responsibility for one's actions.

What is the origin of the idiom "come clean" and when to use it?

to [come] clean

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The idiom "take the lid off something" originated from the literal act of removing a lid or cover from a container, revealing its contents. The phrase is used figuratively to emphasize the act of bringing something to light, often with significant impact or consequences. It conveys the idea of unveiling the truth and disrupting the status quo.

What is the origin of the idiom "take the lid off something" and when to use it?

to [take|blow] the lid off {sth}

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The origin of the idiom "the birds and the bees" can be traced back to ancient Greek mythology. In particular, it references the story of Zeus transforming himself into a swan to seduce Leda, resulting in the birth of Helen of Troy. Over time, the phrase has evolved to serve as a euphemism for explaining human reproduction and sexual matters, especially to children.

What is the origin of the idiom "the birds and the bees" and when to use it?

the birds and (the|) bees

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The idiom "on the up and up" originated in the early 20th century in the United States. It is believed to have originated from the world of boxing, where referees would monitor the action from an elevated position to ensure fair play. The phrase "up and up" refers to an upward direction, suggesting honesty and integrity. Over time, it has evolved to mean acting in a transparent and trustworthy manner, without engaging in deception or rule violations.

What is the origin of the idiom "on the up and up" and when to use it?

on the up and up

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The idiom "home truth" originated in the late 18th century in England. This expression is widely used to refer to a harsh or unpleasant truth that is spoken or revealed within the context of personal relationships or familiar settings, typically within one's own home.

What is the origin of the idiom "home truth" and when to use it?

home truth

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The idiom "come out in the wash" has its origins in laundry practices of the past. When people washed their clothes by hand, certain stains or imperfections might not be immediately noticeable but would become apparent once the clothes were dried and ironed. Figuratively, the phrase is used to convey the idea that a situation, fact, or truth will become clear or resolved over time, much like how hidden issues might emerge after the washing process.

What is the origin of the idiom "come out in the wash" and when to use it?

to [come] out in the wash

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Dive into English idioms regarding truthfulness, like "make a clean breast of" and "come out the wash".

"真実性"のための英語のイディオム