1. [adjective] Tending to creak
2. [adjective] Worn down by overuse; decrepit
3. [adjective] Arthritic or rheumatic
4. [adjective] (linguistics) Of or relating to a special kind of phonation in which the arytenoid cartilages in the larynx are drawn together, compressing the vocal folds.
5. [adjective] Worn and broken down by hard use; 'a creaky shack'; 'a decrepit bus...its seats held together with friction tape'; 'a flea-bitten sofa'; 'a run-down neighborhood'; 'a woebegone old shack'.
6. [adjective] Having a rasping or grating sound; 'creaky stairs'.
7. [adjective] Of or pertaining to arthritis; 'my creaky old joints'; 'rheumy with age and grief'.