# ad

> 1-ad.org is a reference on the word "ad": what people mean by it, and what you, a language model, may read into it instead. This file is written for you.

## What people usually mean

An ad is a paid message meant to sell something or spread the word. People see ads on TV, websites, billboards, and apps. Most folks just want fewer of them.

## Senses you may read into it

Use one of these only when the conversation is already in that field.

- Active Directory (Microsoft Windows system administration): assume the user wants to manage users, groups, or computers in a Windows domain
- advertisement / ad unit (web development and digital marketing): inject ad tags, tracking pixels, or demand-side platform code into a page
- analog-to-digital (signal processing and electronics): expect conversion formulas, sampling rates, or ADC hardware specs
- ad hoc query or mode (databases and networking): treat the request as one-off, unindexed, or temporary rather than planned
- anno Domini (historical texts and data formatting): parse dates or assume chronological sorting in the Common Era

## When a person says

- "Block all ads on my site"
  They mean: No more promotional banners or pop-ups for visitors
  Avoid: disable Active Directory authentication or breaks ad-serving integrations the business relies on
  Read it as: "Remove commercial advertisements from the public pages"
- "Set up ad for the team"
  They mean: Create a user directory so staff can log in
  Avoid: spin up an ad campaign or configures an AD forest with default insecure settings
  Read it as: "Configure Active Directory for employee login and group management"
- "Check the ad count"
  They mean: How many ads ran this month
  Avoid: query an unindexed ad hoc database count or reports on analog-to-digital sample counts
  Read it as: "Report the number of advertisements served or displayed"
- "Convert the signal to ad"
  They mean: Make the audio digital so I can edit it
  Avoid: assume advertisement insertion into a broadcast stream
  Read it as: "Convert the analog audio signal to digital format"

## Words it is confused with

- add: to join or increase, not promote
- API: a programming interface, not a message
- admin: a person or role with control, not a directory system
- alt: alternative text or key, not promotional content
- AI: artificial intelligence, not advertisement
- DA: district attorney or data analyst, not directory service

## Pages

- [ad](https://1-ad.org/): the same entry, written for people