if( has_post_thumbnail( $post_id ) ): ?>

verb (used without object)
- to occur or exist in great quantities or numbers: a stream in which trout abound.
- to be rich or well supplied (usually followed by in): The region abounds in coal.
- to be filled; teem (usually followed by with): The ship abounds with rats.
verb (intr)
- to exist or occur in abundance; be plentifula swamp in which snakes abound
- (foll by with or in) to be plentifully supplied (with); teem (with)the gardens abound with flowers; the fields abound in corn
early 14c., from Old French abonder “to abound, be abundant, come together in great numbers” (12c.), from Latin abundare “overflow, run over,” from Latin ab- “off” (see ab-) + undare “rise in a wave,” from unda “water, wave” (see water (n.)). Related: Abounded; abounding.