e.g. At Christmas, retailers jack up the prices of wrapping paper, cards and decorations, so I always buy these items in January, after the holidays.
marble n.
basalt n.
gravel n.
pebble n.
cobble n.
granite n.
limestone n. undercut v. …
undergo v.
undertake v.
underline v. …
undermine v.
underlie v. …
underdog n.
underway adj.
adv.
undercover adj.
adv.
underground n.
adv./adj.