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fins
A2
plural animal noun
Sử dụng:
100%
fish appendages, swimming organs
Tương ứng: fish appendages, swimming organs
Phát âm: /fɪnz/
Ý nghĩa: flat appendages used by fish for movement and balance

This biological meaning refers to the structures aquatic animals use for propulsion, steering, stability, and stopping.

The fish moved its fins rapidly.

Sharks have several distinct types of fins.

2
A2
plural sports noun
Sử dụng:
98%
swim fins, flippers
Tương ứng: swim fins, flippers
Phát âm: /fɪnz/
Ý nghĩa: rubber or plastic footwear used to swim more efficiently

This meaning refers to broad footwear worn by swimmers and divers to increase propulsion in water.

The diver put on her mask and fins.

Long fins help swimmers move quickly underwater.

3
B2
engineering plural noun
Sử dụng:
94%
stabilizers, control surfaces
Tương ứng: stabilizers, control surfaces
Phát âm: /fɪnz/
Ý nghĩa: surfaces that stabilize or guide an aircraft, rocket, boat, or projectile

This engineering meaning refers to projecting surfaces that provide stability, steering, or aerodynamic control.

The rocket's fins keep it stable during flight.

Tail fins help control the aircraft.

4
C1
engineering plural noun
Sử dụng:
87%
cooling fins, heat-transfer surfaces
Tương ứng: cooling fins, heat-transfer surfaces
Phát âm: /fɪnz/
Ý nghĩa: thin projecting surfaces that release or absorb heat

This technical meaning refers to extended surfaces that increase the area available for heat transfer.

The motor has metal fins for cooling.

Dust reduced airflow between the heat-sink fins.

5
C1
dated American slang plural noun
Sử dụng:
21%
five-dollar notes, five-dollar bills
Tương ứng: five-dollar notes, five-dollar bills
Phát âm: /fɪnz/
Ý nghĩa: five-dollar bills

This dated American slang meaning refers to banknotes worth five dollars.

He paid for the meal with two fins.

The old story mentions a pocket full of fins.

fins
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