Antigen : রক্তস্রোতের মধ্যে বাইরের থেকে প্রবিষ্ট পদার্থ যা রোগজীবাণু-প্রতিরোধক পদার্থ সৃষ্টি করে;
Related Words
anti gen  antigen  antitoxin  See Words Also In
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Appropriate Prepositions
Desist from (বিরত থাকা): She desisted from making this.
Rejoice at/in (আনন্দ করা): Everybody rejoiced at/in his success.
Repentant for (অনুতপ্ত): Kamal should be repentant for his misbehavior.
Similar to (সদৃশ): My T-shirt is similar to yours.
Subsist on (বেঁচে থাকা): The poor subsist mainly on rice and pulses.
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Idioms
Birds of a feather (persons of like disposition-একই পর্যায়ের লোক) Bird’s of a feather flock together.
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
Hush money (ঘুষ): He offered a hush money to disclose the file.
Out of order (বিকল): The elevator was out of order.
Pin money (স্ত্রীর দেয়া হাত খরচ)— She saved her pin money.