How to Ensure Correct Letter Spelling in Voice Conversations

Last updated: June 5, 2025

When your voice assistant needs to spell out words or names to users, it's important to use a clear format that prevents misinterpretation of letters. This article explains how to implement proper letter spelling in your voice conversations.

Recommended Spelling Format

To ensure clear and accurate letter pronunciation, use the NATO phonetic alphabet format in your prompts:

"[Letter] for [Word] - [Letter] for [Word]"

For example, instead of spelling "SMITH" as "S-M-I-T-H", use:

"S for Sierra - M for Mike - I for India - T for Tango - H for Hotel"

Standard Phonetic Word List

Use the following word associations for consistent and clear letter pronunciation:

Letter

Word

Letter

Word

A

Apple

N

Nut

B

Ben

O

Oscar

C

Cat

P

Pete

D

Dog

Q

Queen

E

Elephant

R

Romeo

F

Frank

S

Sarah

G

Golf

T

Tango

H

Hotel

U

Umbrella

I

Ice

V

Vivian

J

June

W

Water

K

Kevin

X

Xylophone

L

Lemon

Y

Yellow

M

Man

Z

Zebra

Implementation Tips

When implementing this in your prompt, make sure to:

  • Include spaces before and after each dash (-) between letters

  • Use consistent formatting throughout your conversation

  • Test the spelling with complex names or words that might be prone to misinterpretation