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ISL ALPHABET GUIDE

Indian Sign Language A-Z Reference

FINGER POSITION KEY
✓ Finger Extended (Up)
✗ Finger Closed (Down)
→ Pattern: [Thumb] [Index] [Middle] [Ring] [Pinky]

A - E

A
Closed fist with thumb on the side
[✗] [✗] [✗] [✗] [✗]
B
Four fingers up, thumb across palm
[✗] [✓] [✓] [✓] [✓]
C
Hand curved forming C shape
[✓] [✓] [✓] [✓] [✓] Curved
D
Index up, thumb touches middle/ring
[✓] [✓] [✗] [✗] [✗]
E
Fingers bent, thumb across knuckles
[✓] [✗] [✗] [✗] [✗]

F - J

F
Thumb touches index, pinky extended
[✓] [✗] [✗] [✗] [✓]
G
Index & thumb pointing sideways
[✓] [✓] [✗] [✗] [✗]
H
Index & middle horizontal
[✗] [✓] [✓] [✗] [✗]
I
Pinky finger extended upward
[✗] [✗] [✗] [✗] [✓]
J
Pinky draws J shape in air
[✗] [✗] [✗] [✗] [✓] + Motion

K - O

K
Index & middle up, thumb between
[✓] [✓] [✓] [✗] [✗]
L
Thumb & index form L shape
[✓] [✓] [✗] [✗] [✗]
M
Three fingers over thumb
[✗] [✗] [✓] [✓] [✓]
N
Two fingers over thumb
[✗] [✗] [✗] [✓] [✓]
O
Fingertips touch forming circle
[✓] [✓] [✓] [✓] [✓] Circle

P - T

P
Index & middle pointing down
[✗] [✓] [✓] [✗] [✗] Down
Q
Thumb & index pointing down
[✓] [✓] [✗] [✗] [✗] Down
R
Index & middle crossed
[✗] [✓] [✓] [✗] [✗] Crossed
S
Fist with thumb across front
[✓] [✗] [✗] [✗] [✗]
T
Thumb between index & middle
[✓] [✗] [✗] [✗] [✗]

U - Z

U
Index & middle together, upward
[✗] [✓] [✓] [✗] [✗] Together
V
Index & middle in V shape
[✗] [✓] [✓] [✗] [✗] Spread
W
Three fingers spread in W
[✗] [✓] [✓] [✓] [✗]
X
Index bent in hook shape
[✗] [✓] [✗] [✗] [✗] Hooked
Y
Thumb & pinky extended (hang loose)
[✓] [✗] [✗] [✗] [✓]
Z
Index draws Z in air
[✗] [✓] [✗] [✗] [✗] + Motion

Numbers 0-9

0
Closed fist / Circle with thumb & index
[✗] [✗] [✗] [✗] [✗]
1
Index finger extended
[✗] [✓] [✗] [✗] [✗]
2
Index & middle extended
[✗] [✓] [✓] [✗] [✗]
3
Index, middle, ring extended
[✗] [✓] [✓] [✓] [✗]
4
Four fingers extended (no thumb)
[✗] [✓] [✓] [✓] [✓]
5
All five fingers extended
[✓] [✓] [✓] [✓] [✓]
6
Four fingers down, thumb up
[✓] [✗] [✓] [✓] [✓]
7
Three fingers down, thumb up
[✓] [✗] [✗] [✓] [✓]
8
Two fingers down, thumb up
[✓] [✗] [✗] [✗] [✓]
9
Pinky down, thumb up
[✓] [✗] [✗] [✗] [✓]
⚠️ IMPORTANT NOTES

Static vs. Motion: Some letters (J, Z) require motion which the app may not capture perfectly. The system will attempt to recognize the starting position.

Similar Gestures: Some letters share similar hand shapes (like M/N, P/Q). Hold steady and ensure clear finger positioning for best recognition.

Practice: The system learns your hand better over time. Practice each letter multiple times for optimal results.