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Word Meanings
.1 Refer to the online dictionary
For each highlighted word on pages 70-71, the meaning is given below.
For practice with other meanings, see pages 75-77. For synonyms and
antonyms, see page 100.
1. signal
(SIG- nuh l)
2. jolt
(johlt)
(n.) Ajolt is a sudden sharp, jerky
movement. (v.) When you jolt something, you move it with a quick or hard blow. 3. collide
(ku h-LIDE)
(v.) When things crash into one another, they coLLide. 4. invariabLe
(i n-VAIR-ee-uh-b uhl)
(adj.) Something that is invariable does not change and cannot change.
5. obtainable
(uhb-TAIN-uh-buhl)
(adj.) Something that is obtainable can be gained or attained by some
action or effort.
6. achievable
(uh-CHEEV-u h-buhl)
(adj.) A goal that can be reached is achievable.
7. crust
(kruhst)
(n.) Earth's crust is the outer part of the planet. (n.) The hardened outside surface or covering of something, such as bread, is the crust. 8. mantle
(MAN-tuhl)
(n.) The mantle is the part of the Earth found between the crust (the outer
layer) and the core. (n.) Anything that covers or envelops something the way a cape does can be called a mantle. 9. alter
(AWL-tu r)
(v.) When you alter something, you change it.
10. landscape
(LAN D-s kape)
72 (n.) A signal is something that gives notice or warning. (v.) When something communicates or is a sign of something that is about to happen, it is said to signal the event.
(n.) The landscape is the landforms in a particular area or region.