cesium, caesium, atomic number 55, blue note, minor key, sing along, cool cat, alarm bell, dead ringer, ring a bell, more...

d, g, k, p, t

roman one hundred,   not b,   the speed of light,   i co,   mediocre grades,   so-so grade,   mediocre grade,   abbreviated sea,   mediocre mark,   middling mark,   low usda grade