| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| rarefy | verb t. | To make rare, thin, porous, or less dense; to expand or enlarge without adding any new portion of matter to; — opposed to condense., To become less dense; to become thin and porous. |
| rarely | adverb | In a rare manner or degree; seldom; not often; as, things rarely seen., Finely; excellently; with rare skill. See 3d Rare, 2. |