The phrase "abyss between countries" refers to a deep and significant divide that exists between two or more nations. It is a metaphorical way of describing an unbridgeable gap that separates countries due to differences in ideology, politics, cultural norms, or economic systems. There are several synonyms that can be used to describe this phenomenon, including chasm, rift, gulf, schism, divide, separation, and crisis. Each of these words captures the sense of a profound and potentially catastrophic rift that exists between nations. In order to bridge such a divide, countries must work towards understanding and mutual cooperation, seeking common ground and working towards common goals.