Question

Is good grief a strong interjection

Answer 1

Yes

Step-by-step explanation:

Yes, “good grief” was originally a mild oath. It's “a euphemism for 'good God,'” according to The American Heritage Dictionary of Idioms (2d ed.), by Christine Ammer. Ammer describes it as an “exclamation expressing surprise, alarm, dismay, or some other, usually negative, emotion.

Answer 2

An interjection is a word that expresses a strong emotion. It expresses emotion of joy, sorrow, excitement, wonder surprise, pain, sadness, happiness, and so on. e.g. Oh, Wow, Hurrah, Alas, Ouch, Oops, Aha, Yahoo, Eww, e.t.c. Interjections are usually specific words such as 'Hurrah, Wow, Oh, Ouch, Huh'.