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altitude
2-
longitude
3-
bay
4-
branch
5-
clearing
6-
cove
7-
crater
8-
deposit
9-
dock
10-
estuary
11-
flow
12-
gulf
13-
horizon
14-
iceberg
15-
peak
16-
peninsula
17-
plain
18-
plateau
19-
pole
20-
pond
21-
range
22-
ravine
23-
reservoir
24-
summit
25-
swamp
26-
tundra
27-
to erode
28-
arid
29-
barren
30-
coastal
31-
fertile
32-
inland
33-
offshore
34-
marine
35-
neighboring
36-
upstream
altitude
noun
a
æ
l
l
t
t
i
ə
t
t
u
u
d
d
e
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the distance between an object or point and sea level

example
Example
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The airplane reached a cruising altitude of 30,000 feet above sea level.
The village sits at an altitude of 1,200 meters in the foothills of the mountains.
longitude
longitude
noun
l
l
o
ɑ
n
n
g
ʤ
i
ə
t
t
u
u
d
d
e

the distance of a point east or west of the meridian at Greenwich that is measured in degrees

bay
bay
noun
b
b
a
e
y
ɪ

an area of land that is curved and partly encloses a part of the sea

branch
noun
b
b
r
r
a
æ
n
n
ch
ʧ

a smaller part of a river that is separated from the main and larger part

clearing
noun
c
k
l
l
ea
ɪ
r
r
i
ɪ
n
n
g
g

a treeless area in a forest

cove
noun
c
k
o
v
v
e

a small curved area of land that partly encloses a specific part of the sea

crater
noun
c
k
r
r
a
t
t
e
ɜ
r
r

the round top of a volcano

deposit
noun
d
d
e
ə
p
p
o
ɑ
s
z
i
ɪ
t
t

a layer of matter that has been accumulated, particularly by a body of water

dock
dock
noun
d
d
o
ɑ
ck
k

a structure built out into the water so that people can get on and off boats or ships

estuary
estuary
noun
e
ɛ
s
s
t
ʧ
ua
r
r
y
i

the part of a river that is wide and where it meets the sea

flow
noun
f
f
l
l
o
w

the state of moving constantly and steadily

gulf
gulf
noun
g
g
u
ə
l
l
f
f

an area of sea that is partly surrounded by land, with a narrow opening

horizon
horizon
noun
h
h
o
ɜ
r
r
i
z
z
o
ə
n
n

the line where the sky and earth seem to come in contact with each other

iceberg
iceberg
noun
i
c
s
e
b
b
e
ɜ
r
r
g
g

a very large floating piece of ice

peak
peak
noun
p
p
ea
i
k
k

the pointed top of a mountain

peninsula
noun
p
p
e
ə
n
n
i
ɪ
n
n
s
s
u
ə
l
l
a
ə

a large body of land that is partially surrounded by water but is attached to a larger area of land

plain
plain
noun
p
p
l
l
ai
n
n

a vast area of flat land

plateau
plateau
noun
p
p
l
l
a
æ
t
t
eau

an area of land that is flat and higher than the land surrounding it

pole
noun
p
p
o
l
l
e

the most northern or most southern points of the earth that are joined by its axis of rotation

pond
pond
noun
p
p
o
ɑ
n
n
d
d

an area containing still water that is comparatively smaller than a lake, particularly one that is made artificially

range
range
noun
r
r
a
n
n
g
ʤ
e

a line of mountains or hills

ravine
ravine
noun
r
r
a
ə
v
v
i
i
n
n
e

a deep narrow valley with steep sides, usually worn by a stream

reservoir
noun
r
r
e
ɛ
s
z
e
ə
r
v
v
o
i
r
r

a lake, either natural or artificial, from which water is supplied to houses

summit
summit
noun
s
s
u
ə
mm
m
i
ə
t
t

the top of a mountain

swamp
swamp
noun
s
s
w
w
a
ɑ
m
m
p
p

an area of land that is covered with water or is always very wet

tundra
noun
t
t
u
ə
n
n
d
d
r
r
a
ə

the expansive flat Arctic regions, of North America, Asia, and Europe, in which no trees grow and the soil is always frozen

to erode
to erode
Verb
e
i
r
r
o
d
d
e

(of natural forces such as wind, water, or other environmental factors) to gradually wear away or diminish the surface of a material

Grammatical Information:

transitive
arid
arid
Adjective
a
æ
r
r
i
ə
d
d

(of land or a climate) very dry because of not having enough or any rain

barren
barren
Adjective
b
b
a
æ
rr
r
e
ə
n
n

(of land or soil) not capable of producing any plants

coastal
Adjective
c
k
oa
s
s
t
t
a
ə
l
l

related to or situated along the coast, the area where land meets the sea

inland
fertile
fertile
Adjective
f
f
e
ɜ
r
r
t
t
i
ə
l
l
e

(of land or soil) able to produce crops or plants well

inland
inland
Adjective
i
ɪ
n
n
l
l
a
æ
n
n
d
d

located away from the coast

coastal
offshore
Adjective
o
ɔ
ff
f
sh
ʃ
o
ɔ
r
r
e

situated or occurring in the sea, typically away from the shore or coast

marine
Adjective
m
m
a
ɜ
r
r
i
i
n
n
e

related to the sea and the different life forms that exist there

neighboring
Adjective
n
n
ei
gh
b
b
o
ɜ
r
r
i
ɪ
n
n
g
g

(of a place) close to another

upstream
Adverb
u
ə
p
p
s
s
t
t
r
r
ea
i
m
m

against the current of a river or stream

downriver

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You learned 36 words from Lesson 49. To improve learning and review vocabulary, start practicing.

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