What is synonym of el nino?

There isn't a single, perfect synonym for "El Niño," as it's a specific phenomenon. However, depending on the context, you could use some of these options:

For describing the event itself:

* Warm phase of the ENSO cycle: This is the most accurate and technically correct way to refer to it.

* ENSO warm phase: This is a slightly shorter version of the previous option.

* Pacific warm episode: This emphasizes the geographical area affected.

* El Niño-Southern Oscillation (ENSO) warm phase: This provides the full context of the phenomenon.

For describing the effects:

* Pacific Ocean warming: This focuses on the oceanographic aspect.

* Climate anomaly: This describes the overall effect on weather patterns.

* Drought: This applies to specific areas experiencing drought due to El Niño.

* Flooding: This applies to specific areas experiencing floods due to El Niño.

For describing the opposite event:

* La Niña: This refers to the cooling phase of the ENSO cycle.

It's important to choose the synonym that best fits the specific context and your intended meaning.