light-tight

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Explanation of "Light-tight"

Definition: The word "light-tight" is an adjective that describes something that does not let any light pass through. It means that an object or container is completely sealed so that light cannot enter or escape.

Example:

• "The light-tight container kept the photos safe from exposure to light."
• "We need a light-tight room for developing film in the dark."

Advanced Usage:

In technical fields, like photography or laboratory work, "light-tight" is crucial. For instance, when developing film, photographers need a light-tight environment to avoid ruining the film by exposing it to light.

Word Variants:

• Light-tightness (noun): The quality of being light-tight.
  • Example: "The light-tightness of the box ensured that the chemicals were protected from light."
• Lightproof (adjective): Very similar meaning; can also describe objects that do not allow light to pass through.

Different Meanings:

"Light-tight" generally has a specific meaning related to light blocking. However, in broader contexts, it may imply something that is completely secure or sealed, preventing not just light but also other elements from entering.

Synonyms:

• Lightproof
• Dark-proof
• Opaque (in certain contexts)

Idioms and Phrasal Verbs:

While there are no specific idioms or phrasal verbs directly related to "light-tight," you might encounter phrases that convey the idea of protection or security, such as: - "Seal the deal" (to finalize an agreement). - "Keep it under wraps" (to keep something secret or hidden).

Summary:

"Light-tight" is a useful word to describe things that block light. You can use it in everyday conversation or specialized contexts, particularly in photography and science.

Academic

Adjective

1. not penetrable by light
   • lightproof containers

Synonyms

• lightproof