Core Spelling Words of the Week in·di·cate (ĭn'dĭ-kāt') tr.v., -cat·ed, -cat·ing, -cates. To show the way to or the direction of; point out: an arrow indicating north; indicated the right road by nodding toward it. To serve as a sign, symptom, or token of; signify: “The cracking and booming of the ice indicate a change of temperature” (Henry David Thoreau). ob·serve (əb-zûrv') v., -served, -serv·ing, -serves. v.tr. To be or become aware of, especially through careful and directed attention; notice. To watch attentively: observe a child's behavior. To make a systematic or scientific observation of: observe the orbit of the moon. height (hīt) n. (Abbr. h) The distance from the base of something to the top. Elevation above a given level, as of the sun or a star above the horizon; altitude. See synonyms at elevation. The condition or attribute of being relatively or sufficiently high or tall. Stature, especially of the human body. struc·ture (strŭk'chər) n. Something made up of a number of parts that are held or put together in a particular way: hierarchical social structure. The way in which parts are arranged or put together to form a whole; makeup: triangular in structure. si·lent (sī'lənt) adj. Marked by absence of noise or sound; still. Not inclined to speak; not talkative. Unable to speak.