Explained: Iran is reviewing proposals focusing on Tehran’s nuclear program, officials say

Iran is reviewing proposals from Qatar aimed at addressing differences with the US over its nuclear program, according to two Middle East government officials

IAEA

International Atomic Energy Agency, the body that monitors nuclear programs and inspects sites

Strait of Hormuz

A key waterway for oil shipping that Iran has control over access to

bridge deal

A temporary or interim agreement meant to pave the way toward more substantial negotiations

weapons-grade uranium

Uranium enriched to about 90% purity, suitable for use in nuclear weapons

blockade

A U.S. military action restricting access to Iran's ports