Theory:

Meaning of difficult words from the lesson "Man Overboard":
 
S.No
Words
Meaning
1.
Deck
The top outside floor of a ship
2.
Thrill
A great feeling of excitement and pleasure
3.
WaveA movement of your hand from side to side in air
4.
Excitement
A state of happy feeling about something or a thing going to happen
5.
Approach
To come near to speak to someone or to deal with a problem
6.
Explore
To travel to or around an area in order to learn about it
7.
Splutter
To speak quickly with difficulty because you are surprised, angry or embarrassed 
8.
Brew
Something bad had began to happen
9.
Panic
A strong feeling of fear that prevents reasonable thought
10.
Incline
To tend to behave in a particular way
11.
Seasickness
Feeling ill from the movement of boat
12.
Console
To try to make someone feeling better
13.
Disaster/calamity
An event that causes a lot of harm or damage
14.
Beside
Next to or at the side of somebody or something
15.
Adventure
An unusual, exciting or dangerous experience
16.
Off course
Something that is lost or confused
17.
SeverelyVery badly or seriously
18.
Unpleasant Not enjoyable or comfortable
19.
On board
On a ship or an aircraft
20.
SteamerA ship that is driven by steam
21.
Strange Unusual and different in a way that is difficult to understand 
22.
Concerned Worried and feeling concern about something
23.
CuriosityA strong desire to learn or know about something
24.
Wandering Moving away from the proper or normal way without a sense of direction or purpose
25.
CrisisA difficult or danger situation
26.
Rock
To move back and forth or sideways
27.
Lounge
A room with seating where people can wait
28.
Crash
To break violently often with a loud noise
29.
To and froBackwards and forwards
30.
Narration A spoken description of events
31.
Imagination The ability to form ideas, or pictures of people or things
32.
WildExtremely violent and not controlled by others
33.
Stare
To look at something for a long time, especially when surprised
34.
Railing
A fence made of metal or iron bars
35.
Slippery
Causing people or things to slip or slide
36.
Blue
Feeling sad and unhappy
37.
AdultA fully grown person
38.
Retch To behave and make noise as if you are vomiting and feeling sick
39.
Lurch
To make a sudden, unsteady movement forward
40.
Tumble
To fall downwards
41.
Blurt
To say something suddenly without thinking carefully
42.
AidHelp or support
43.
PeltTo run fast
44.
SternSevere or showing disapproval
45.
ViolentlyStrongly with great force
46.
Unmanageable Extremely difficult to control
47.
Anchor
A heavy object that is dropped into the water to prevent a ship from moving
48.
Execute
To perform a difficult action or a movement
49.
Occasional
Not happening frequently or regularly
50.
Crew
A group of people who work together, especially who work on a ship or aircraft
51.
RaceTo move or go fast
52.
Weird Strange and unusual
53.
Grip
To hold someone or something tightly
54.
Wince
Refers to a sudden expression on the face stating your embarrassment or pain
55.
Protest
To say or do something to show your disapproval
56.
Rescue
To save someone from a dangerous situation
57.
RegretTo feel sorry for what you have done or what you have not been able to do
58.
Heave
To move up and down or in and out
59.
Tide
A regular rise and fall in the level of sea
60.
Nervous
Anxious or afraid of something
61.
UnfortunatelyUnluckily
62.
Borrow
To use or take something that belongs to somebody
63.
Stroke
Series of repeated movements in swimming or rowing
64.
Jiffy
A very short period of time
65.
MutterTo say something in a very quiet voice
66.
Throng A large crowd of people
67.
EdgeTo move somewhere carefully   
68.
ConsumeTo drink or eat something
69.
NodTo move your head up and down to show your agreement or understanding
70.
Consciousness
The state of being awake and able to see, hear and think
71.
Regain
To get something again that you have lost
72.
I'm throughI am done
73.
SneakTo go somewhere secretly so that nobody can notice you
74.
Scurry To run with short steps
75.
Rush Hurry to do something
76.
Drowsy
A feel of sleep
77.
Eagerly
Very interested and enthusiastic on doing something
78.
Leisure
Refers to the time you are not working or not busy 
79.
Recollect To remember something that had happened
80.
Compliment
A comment or statement that shows praise of approval
81.
Exclaim
To say something suddenly and loudly because of strong emotion or pain
82.
Snugly
In a way that is comfortable or protected 
83.
Pat
To touch someone or something with flat hands to show your kindness 
84.
Indeed
In reality
85.
Unanimous Refers to a complete agreement of many
86.
VerdictAn opinion or judgement
87.
ProudFeeling happy and satisfied with what you have done
88.
Commotion
A sudden short period of noise, excitement or confusion
89.
Fond
To like someone or something very much
90.
Fascinated Highly interested
91.
Exaggerate
To make something better or worse than it really is
92.
VictimA person harmed, injured or killed by someone or by any event, action etc.