What is the meaning of the word 'Dross'?

♦ Dross: (noun) 
English Meaning: Something that has no use or no value.
Bangla Meaning: 
(১) ধাতু গলালে যে ময়লা বা গাদ জমে; ধাতুমল; ময়লা।
(২) (লাক্ষণিক) মূল্যহীন বস্তু; আবর্জনা।

Synonyms: Rubbish (আবর্জনা), Garbage (ময়লা, আবর্জনা), Debris (ধ্বংসাবশেষ), Junk (আবর্জনা, মূল্যহীন বস্তু), Trash (জঞ্জাল)। 
Antonyms: Asset (সম্পদ), Resource (সম্বল, সম্পদ), Valuable (সম্পদ, মূল্যবান বস্তু), Worthful (মূল্যবান) Significant (গুরুত্বপূর্ণ)। 

Other Forms:
- Drossy (Adjective).

Example Sentence: 
1. We read all the manuscripts, but 95 percent are dross.
2. This movie is not completely without value, but there's a lot of sub-par dross to be sifted through to get to the worthwhile material.

• অন্য অপশন:
- Tacit: Understood without being expressed directly.
- Obviate: To remove a difficulty, especially so that action to deal with it becomes unnecessary.
- Preamble: An introduction to a speech or piece of writing.

Source: Website Lecture.