accrue accumulate advance appreciate balloon bloat blossom bob up boom break water breed brew bristle up broaden bud burgeon burst forth cock up crescendo develop extrude float up flourish fly up fountain gain gain strength gather gemmate germinate get ahead go up grow grow rank grow up gush hypertrophy increase intensify jet jump up jut out leaf leaf out leap up leave luxuriate mainline mature mount multiply mushroom outgrow overdevelop overgrow overrun overtop poke out pop up procreate project proliferate protrude protuberate pullulate put forth put forth leaves put out buds reproduce riot rise rise up rocket root run up shoot shoot out skyrocket snowball soar spread spring up sprout sprout up spurt stand out start up stick out stick up strengthen strike root surface swell take root thrive tower upgrow upleap uprise upshoot upspear upspring upsprout upstart vault up vegetate wax widen