fall
The Spanish word for 'fall' is 'caer'. It is used in a similar way as in English. For example, you can say 'Las hojas comienzan a caer en otoño' which means 'Leaves start to fall in autumn'. But be careful, it's not used when referring to the season 'fall' or 'autumn', which in Spanish is 'otoño'.
I don't want to fall into the temptation of junk food
This phrase is used to express the speaker's intention of not succumbing or giving in to the temptation, here used metaphorically in the form of 'junk food'.
I'm going to drop dead if I don't sleep soon
In this sentence, 'caer rendido' is a metaphorical use to express extreme tiredness where one feels like they could 'drop' from exhaustion.
The snow started to fall when the sun set
This sentence simply describes a specific weather condition: snow starting to fall at sunset.
The vase is going to fall if you don't move it
This phrase suggests a warning about a vase that is usually placed upright on a surface and it is about to fall (caer) due to its unstable position. The speaker is suggesting taking action to prevent this.
I always fall into the same mistake
This is a metaphorical use of 'caer', which in English corresponds to 'falling into a mistake'. It means that the speaker repeats the same wrong action over and over again.
My energy level usually drops after lunch
In this case, 'caer' is used to describe a decrease or drop in someone's energy level, which is a common experience after having a meal.
If I push you, you're going to fall
This is a plain statement where 'caer' is used literally to mean that if the person is pushed, they will lose their balance and fall.
I can't drop my responsibilities
Here 'caer' is used metaphorically, implying that the speaker cannot ignore or neglect their responsibilities.
The leaves start to fall in autumn
This phrase uses 'caer' in a literal sense to describe the natural phenomenon that happens in autumn or fall, where leaves drop from the trees.
I prefer to fall standing than to die lying down
This phrase is a metaphor meaning the speaker prefers continue trying, even though there may be failure ('fall standing'), rather than giving up ('die lying down').