Affect is a verb – “to affect” – meaning to influence or have an impact on something. Effect is the noun – “an effect (a positive or a negative effect) is the result of being affected by something. There is also a verb “to effect”, which means to bring something about – “to effect a change”.

Is it in effect or in affect?

Affect and effect are two of the most commonly confused words in English, but don't worry—we'll help you keep them straight. The basic difference is this: affect is usually a verb, and effect is usually a noun.

Is in full effect or affect?

Common Usage: More often than not, if you need a verb, affect is the word you want. If you need a noun, then effect is most likely correct. Remember: Affect commonly means to change, while effect means the result of a change.