Similarity (n.) we notice easily; the incomparable we hardly notice at all.
10 definitions
Similarity (n.) obtrudes itself with the force of a sense-perception on one kind of mind, while the other kind sees only difference, just as undeniably.
Similarity (n.) is internal when shapes like circle and parabola resemble each other, external when two people happen to look alike now.
Similarity (n.) is noticed rather than seen — one cannot see a likeness between two faces from one stroke of the hour to the next.
Similarity (n.) depends on the case: a bluish green is like a yellowish green in some uses and most unlike it in others.
Similarity (n.) or the relation of ‘just as’ is the one logical relation dreams favour above all; much of the dream-work is manufacturing fresh parallels.
Similarity (n.) is not explained by a common element; saying two strains 'have something in common' is only another way of saying they are similar.
Similarity (n.) striking us need not come before we use the same word; the striking may consist, partly or wholly, in our being prompted to use the same picture or phrase.