He went to the station to see her friend ____.

• Complete sentence: He went to the station to see her friend off.
- Bangla meaning: সে স্টেশনে গিয়েছিল তার বন্ধুকে বিদায় জানাতে।

• See (someone) off
- English meaning: to go to the place that someone is leaving from in order to say goodbye to them.
- Bangla meaning: বিদায় জানানো; বিদায় জানাতে যাওয়া।

• More Example:
1. My parents saw me off at the airport.
2. I went to the airport to see my friend off before her flight to Paris.

• see someone/something off -এর আরেকটা অর্থ হলো-
- English meaning: to defeat someone or something, or to deal with him, her, or it effectively so that that person or thing can no longer cause harm.
- Bangla meaning: কাউকে পরাজিত করা, বা তাকে এমনভাবে মোকাবিলা করা যাতে সে আর কোনো ক্ষতি করতে না পারে।
- যেমন: England saw off Luxembourg 5–0. (ইংল্যান্ড ৫–০ গোলে লুক্সেমবার্গকে পরাজিত করেছে।)

• অন্যদিকে,
- see (something) through - চালিয়ে যাওয়া।
- English meaning: to continue until something is finished.

- see through (someone/something) - বুঝে ফেলা।
- English meaning: to understand the truth about someone or something and not allow yourself to be deceived.

Source:
1. Accessible Dictionary by Bangla Academy.
2. Cambridge Dictionary.