This is the 6479th most frequent French word.
hi
The French word "hi" does not exist as a standalone term with meaning; it resembles the English greeting but is not used in French.
Here, 'hi' is used as a verb to represent a casual greeting or acknowledgment, emphasizing the action towards passing vehicles.
Je hi doucement à chaque voiture qui passe.
I hi gently at each passing car.
In this context, 'hi' acts as a nominalized form, possibly indicating a sound or an expression of greeting that was perceived.
Nous avons entendu un hi étrange au loin.
We heard a strange hi in the distance.
This usage of 'hi' represents a direct usage of the greeting word 'hi', borrowing its common expression from colloquial English.