Emily Dickinson Lexicon

giant (-s), n. [ME < OFr < L.]

1. Being in human form, but having superhuman qualities and characteristics, such as strength, bulk, stature, etc.
2. [Fig.] large obstacle, physical, mental, or otherwise.
3. Person of extraordinary strength or intelligence.
4. Phrase. “The Giant tolerates no Gnat”: superior, dominant power; one holding the power who makes the rules.