What does the comparison suffix 'er' indicate?

The comparison suffix 'er' indicates that something possesses a greater degree of a particular quality when compared to another. For example, in the words "taller," "stronger," or "faster," the suffix 'er' implies that one subject has more of the quality (height, strength, speed) than another subject. This usage is common in English to form comparative adjectives, which help to establish a relationship between two nouns by demonstrating that one has an enhanced characteristic relative to the other. Thus, the correct understanding of the suffix 'er' is that it signifies an increase in a particular trait or quality compared to something else.