Learner's definition of IMPRESSION
1 : the effect or influence that something or someone has on a person's thoughts or feelings
Her words made a strong impression (on us).
The candidate made a favorable/positive/good/bad impression.
What was your impression of the candidate? [=what did you think of the candidate?]
My first impression of him was that he was a kind and thoughtful young man.
First impressions are important but can be misleading.
In her journal, she recorded her impressions of the city.
Her kindness left a lasting impression on her students.
I was trying to make an impression. = I was trying to make a good impression.
He's trying to avoid (giving) the impression that he's insensitive.
a fleeting impression
2 : an idea or belief that is usually not clear or certain
It was my impression [=I thought] that admission was free.
I'm sorry if I gave you the wrong impression. [=I'm sorry if I misled you]
I got/had the distinct impression that they didn't mean to stay long.
They gave (us) the impression that they didn't mean to stay long.
an erroneous/false/mistaken impression
I was under the impression [=I thought] that admission was free.
3 : an appearance or suggestion of something
The garden is designed in tiers to give/create the impression of steps. [=the garden is designed so that it looks like steps]
His lifestyle conveyed the impression of great wealth. [=his lifestyle led people to believe that he was very wealthy]
4 : something (such as a design or a footprint) made by pressing or stamping a surface 5 : an imitation of a famous person that is done for entertainment