<p><strong>Verb:</strong></p><ul><li>To support, or prevent from falling, with or as if with a prop (often followed by up): to prop an old fence; to prop up an unpopular government.</li><li>Synonyms: bolster, buttress, brace.</li><li>To rest (a thing) against a support: He propped his cane against the wall.</li><li>To support or sustain (often followed by up).</li></ul><p><strong>Noun:</strong></p><ul><li>A stick, rod, pole, beam, or other rigid support.</li><li>A person or thing serving as a support or stay: His father is his financial prop.</li></ul>