Synonyms for Oblong include:
acerate, acerose, acicular, acuminate, apiculate, arrow-shaped, bladelike, caudate, cordate, cordiform, cuneate, deltoid, dolabrate, dolabriform, elliptic, elongate, elongated, ensiform, extendable, extended, extendible, far, fiddle-shaped, five-needled, four-needled, hastate, heart-shaped, kidney-shaped, lancelike, lanceolate, lank, lengthened, linear, long, long-handled, long-range, long-snouted, long-staple, long-wool, long-wooled, lyrate, needle-shaped, needled, oblanceolate, oblong, obovate, obtuse, orbicular, orbiculate, ovate, pandurate, panduriform, peltate, perfoliate, pole-handled, polysyllabic, prolonged, reniform, sagittate, sagittiform, sesquipedalian, shield-shaped, simple, smooth, spatula-shaped, spatulate, spearhead-shaped, stretch, sword-shaped, swordlike, three-needled, two-needled, unlobed, unsubdivided, wedge-shaped
oblong is a ADJ.