Figures of speech often including "as a"

• "Flat as a pancake" and "big as a house," for two
• Like things?
• Like words?
• Comparative phrases
• "Good as gold" and "fresh as a daisy"
• "Mad as a hatter" et al
• Phrases with "as a" in the middle
• "Fresh as a daisy" and others
• "Happy as a clam" and "blind as a bat"

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Simile \Sim"i*le\, n.; pl. Similes . [L., from similis. See Similar .] (Rhet.) A word or phrase by which anything is likened, in one or more of its aspects, to something else; a similitude; a poetical or imaginative comparison. A good swift simile, but ...