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NA

Podcast 1 · Introduction

NA /ˌɛnˈeɪ/ · abbreviation

A short documentary narration — meaning, origin, and how the word is used.

In this course, NA stands for not applicable or not available. The related entry for narrow minded gives a related word, and the Cambridge definition of na and the Merriam-Webster entry for na give the main sense. For more background, see the encyclopaedia article on na.

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Podcast 2 · Daily Use

In Conversation

Two British speakers using "na" naturally in everyday talk.

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Podcast 3 · Prompt Engineering

Prompting with "na"

An instructor and developer explore real, copy-ready AI prompts built around the word.

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Transcript: “Na” vocabulary micro-course

Read along with the three podcasts, or open the full dictionary entry for Na for the definition, Arabic meaning, synonyms and example sentences.

Podcast 1 — Introduction & meaning

Narrator: Today's word is "NA" — abbreviation, pronounced /ˌɛnˈeɪ/, standing for not applicable or not available.

Narrator: NA is an abbreviation for not applicable or not available, used on forms and in data.

Narrator: In plain English, NA means not applicable — like writing NA on a form when a question doesn't apply to you.

Narrator: It stands for Not Applicable or Not Available, from the English words.

Narrator: "To write NA" describes marking a field as not applicable or not available.

Narrator: It differs from N/A because NA is without the slash, though both mean the same.

Narrator: "NA in data" is a sense meaning a missing or not applicable value in a dataset.

Narrator: Forms, data, computing, surveys and everyday speech all rely on the abbreviation NA.

Narrator: So remember: NA means not applicable, from Not Applicable.

Read podcasts 2 and 3

Podcast 2 — In conversation

Speaker A: What does NA mean?

Speaker B: Not applicable! NA stands for Not Applicable or Not Available, used on forms and in data when something doesn't apply.

Speaker A: So you write NA when a question doesn't apply?

Speaker B: Yes — or N/A with a slash!

Speaker A: Example sentences?

Speaker B: "To write NA"; "NA in data"; "marked NA" — forms, datasets and action.

Speaker A: Common mistakes?

Speaker B: Don't confuse NA with NA meaning sodium, because NA can mean not applicable or the chemical symbol for sodium.

Speaker A: Close relatives?

Speaker B: 'N/A' the slashed cousin, 'n/a' the lowercase twin, 'not applicable' the full alternative. The term keeps its null charm!

Podcast 3 — Prompt engineering

Speaker B: Let's use "NA" in AI prompts — useful for form apps and data tools.

Speaker A: So a prompt could frame forms?

Speaker B: Right. For a form app, you'd write:

Prompt: Write a short guide to using NA on forms, naming two situations.

Speaker A: How about a data tool?

Speaker B: Ask the model to advise:

Prompt: Draft a guide to handling NA values in data, naming two methods.

Speaker A: Could it help with a survey bot?

Speaker B: Yes, you can frame responses:

Prompt: Summarise in two sentences why NA is used in surveys, naming one reason.

Speaker A: One more?

Speaker B: For a data chatbot, try this:

Prompt: Write a short note on NA in datasets, naming one treatment.