buoy

noun
1
an object which floats on the sea or a river to mark the places where it is dangerous and where it is safe for boats to go
بویه, شناساگر شناور, شناور علامت‌دهنده, شناور نشانگر, شناور راهنما
see also lifebuoy
verb
1
to make somebody feel cheerful or confident
دلگرم کردن, تقویت روحیه کردن, روحیه دادن
2
to keep somebody/something floating on water
شناور نگه داشتن, بر آب نگه داشتن, روی آب نگه داشتن, شناور کردن
The raft was buoyed (up) by empty petrol cans.
3
to keep prices at a high or acceptable level
حفظ کردن, تقویت کردن, بالا نگه داشتن
Trading on Wall Street was buoyed in part by rising bond prices.