• The synonym of the word 'Yearn is 'Ardour'.

• Yearn (verb intransitive)
English Meaning: Have an intense feeling of longing for something, typically something that one has lost or been separated from.
Bangla Meaning: আকুল আকাঙ্ক্ষা অনুভব করা।
Example sentence: He yearned for his homeland.

• Ardour (noun)
English Meaning: Very strong feelings of enthusiasm or love.
Bangla Meaning: উষ্ণ আবেগ; আকুলতা; উৎসাহ।
Example Sentence: His revolutionary ardor was an example to his followers.

• অন্য অপশনগুলোর মধ্যে -
Abhor:
English Meaning: to hate a way of behaving or thinking, often because you think it is not moral.
Bangla Meaning: ঘৃণা বা অবজ্ঞা করা; ঘৃণাভরে পরিহার করা।
Example sentence: I abhor all forms of racism.

• Candour (Noun)
English Meaning: The quality of saying what you think openly and honestly.
Bangla Meaning: সরলতা; অকপটতা;
Example Sentence: A human being, but a professional, he answers questions with generosity, intelligence, and candour.

• Vex (verb transitive)
English Meaning: To annoy or worry somebody.
Bangla Meaning: বিরক্ত/উত্যক্ত/জ্বালাতন/হয়রান করা।
Example Sentence: The memory of their conversation still vexed him.

Source:
1. Accessible Dictionary by Bangla Academy.
2. Cambridge Dictionary.
3. Merriam-webster Dictionary.
4. Live MCQ Lecture.