Meaning of difficult words from the lesson "The Book That Saved the Earth":
 
S.No
Words
Meaning
1.
CuriosityA strong desire or eager to learn or know about
2.
EraA long and significant period in history
3.
InvadeTo take control of another country
4.
EncyclopediaA book or set of books that gives information on many subjects
5.
MissileA tube-shaped weapon that travels long distances and explodes
6.
ApprenticeA person who works under a skilled person in order to gain experience
7.
EaselA wooden frame that supports a picture
8.
PeevishEasily annoyed
9.
Space probeAn unmanned device sent to space to explore and gather scientific information
10.
PrimitiveRefers to the earliest period or age
11.
EarthlingA word used by aliens to refer to humans
12.
GoggleA protective glass that guards eyes against chemicals, wind, water, etc
13.
CrewA group of people who works together under someone
14.
BookcaseA shelf to keep books
15.
RiffleTo turn over the pages of books quickly
16.
Catalogue A list of all items
17.
IncidentRefers to unexpected or unpleasant thing
18.
BarnA large building used for storing something
19.
Galaxy
Refers to a collection of stars and planets held together by gravity
20.
HaberdasheryRefers to men's clothing and accessories
21.
Refreshment Refers to a snack or drink
22.
CrudeIn a raw or natural state
23.
SquintTo look at something with one or two eyes partly closed
24.
StrangeSomething unusual
25.
PantomimeRefers to exaggerating mime
26.
BoundTo beat
27.
DeliciousRefers to something tasty or pleasant
28.
HaughtilyIn a way showing proud and superior attitude
29.
SurveyorA person who investigates or examines something
30.
WhisperTo speak in a soft, low voice
31.
IntentlyIn a way that shows great attention to something
32.
BowTo move your head and body forward as a way of showing respect to someone or something
33.
Alongside Together with something
34.
UnfoldTo reveal something
35.
DecipherTo make the meaning of something difficult
36.
SimultaneouslyAt the same time
37.
InstantHappening immediately
38.
Transcribe To convert something into a written or spoken format 
39.
LevityRefers to lack seriousness
40.
Mistress A woman who employs servants
41.
MiningRefers to the act or process of extracting metals
42.
ExplosiveA substance that can burst violently
43.
Fleet Refers to a vehicle or aircraft being operated under someone's order
44.
Take over To take control of
45.
DiddleTo play with something
46.
NotifyTo inform about something in an official way
47.
LaunchingTo send something out
48.
Interplanetary Between planets
49.
Scream To give out a loud cry or noise
50.
Capture To take control of something
51.
ChuckleTo laugh quietly
52.
EstablishTo permanently set up a firm, business, etc