Premier and premiere originate from the same word, but they have different meanings.
Began is the simple past tense of the verb “begin,” while begun is the perfect participle.
Historic and historical are two adjectives with different meanings. Historic describes significant moments, figures, or objects in history.
The adjectives discreet and discrete share identical pronunciations and origins, but they have different definitions.
The word “sometime” references an unknown period of time or something that is ‘former.’
Explicit and implicit are adjectives with opposite meanings. If something is explicit, it's clearly understood.
The words criteria and criterion are the same words, except "criterion" is singular, and "criteria" is plural.
If something has a pale-yellow hue, we might call it “blonde” or “blond.” The difference is that the word “blonde” is feminine, while “blond” is masculine or gender-neutral.