There are multiple definitions - click on the translation that matches your context.
államkötvény means:
főnév
partial
noun
The Hungarian government-backed bonds ( called the "Magyar Államkötvény") are securities with a fixed rate of HUF 10,000, with a maturity of either 3, 5, 10 or 15 years. Interest is paid every six or twelve months, from which the interest tax in accordance with current legislation, will be drawn.
(UK FINANCE) a government-backed bond (=a document showing that money has been lent to the issuer and that the issuer will pay the holder the amount of the loan plus amounts of interest on future dates)
If you'd bought gilts yesterday, the yield was around 2% for a five year loan to our government, 3% for ten years and 4% for 20 years.