"Good as gold" and "fresh as a daisy"

• "Smart as a whip" and "sharp as a tack"
• Literary comparisons
• "Flat as a pancake" and "big as a house," for two
• Phrases with "as a" in the middle
• "She's Like the Wind" and others
• Fit as a fiddle and tough as nails
• Rhetorical comparisons
• Like words?
• "Thick as a Brick" and "Solid as a Rock," e.g

Wiktionary Word definitions in Wiktionary
n. (plural of simile English)