"their concentrated efforts"; "his concentrated attention"; "concentrated study"; "a narrow thread of concentrated ore"
is similar to
occurring close together in bunches or clusters
is similar to
having component parts closely crowded together
"a compact shopping center"; "a dense population"; "thick crowds"; "a thick forest"; "thick hair"
is similar to
thrown together in a pile
"a desk heaped with books"; "heaped-up ears of corn"; "ungraded papers piled high"
is similar to
not divided among or brought to bear on more than one object or objective
"judging a contest with a single eye"; "a single devotion to duty"; "undivided affection"; "gained their exclusive attention"
is similar to
planted or growing close together
"thickset trees"
see also
closely and firmly united or packed together
"compact soil"; "compact clusters of flowers"