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Marketing & Advertising Glossary

From CPM to programmatic, every term in advertising and media buying explained in plain English.

All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

RAJAR Ratings

UK Regulation

RAJAR is the official UK radio audience measurement system that tracks listening figures across commercial and BBC stations, essential for media planning and ad

Radio Jingle

Radio & Audio

A short, memorable musical composition or jingle used in radio advertising to enhance brand recall and create emotional connection with listeners.

Radio Reach & Frequency

Radio & Audio

Reach and frequency are two core metrics measuring how many people hear your radio ad (reach) and how often they hear it (frequency).

Radio Roadshow

Radio & Audio

A mobile promotional tour where radio stations broadcast live from different venues across the UK, combining on-air content with in-person brand activations and

Radio Sponsorship

Radio & Audio

A radio advertising format where brands attach their name to specific programmes or segments, building association with content and audiences.

Rate Card

Rate Cards

A rate card is a document listing media outlet prices and specifications for advertising placements and packages.

Rate Limiting

AI

Rate limiting controls how many requests an application can make to an API within a specific time period to prevent overload.

Reach

Out-of-Home

The total number of unique individuals exposed to an out-of-home advertisement during a specific campaign period.

Reach vs Impressions

Social Media

Reach is the total number of unique people seeing your content; impressions are the total number of times content is displayed, regardless of uniqueness.

Real-Time Bidding (RTB)

Buying

An automated auction system where advertisers bid in real-time for individual ad impressions, with winning bids displayed instantly to users.

Real-Time Bidding

Digital & Programmatic

Real-time bidding is an automated auction process where advertisers bid on individual ad impressions instantly as they become available.

Recency Effect (Cinema)

Cinema

The tendency for audiences to recall cinema ads seen recently more vividly than older exposures, influencing campaign timing and frequency strategies.

Recommendation Engine

AI

An AI system that predicts and suggests products, content, or ads most likely to interest individual users based on their behaviour and preferences.

Regional Split Run

Print & Publishing

A print advertising technique that delivers different creative versions to specific geographic regions within a single publication issue, enabling localised mes

RLHF

AI

A machine learning technique where AI models are trained using human feedback to improve accuracy, safety, and relevance in marketing applications.

Responsible AI

AI

Responsible AI refers to the ethical development and deployment of artificial intelligence systems that are transparent, fair, and accountable in advertising and media buying.

Responsive Design

Landing Pages

A web design approach that automatically adjusts layout and content to fit any screen size, from mobile phones to desktop monitors.

Responsive Web Design

Landing Pages

A web design approach that adapts content and layout automatically to different screen sizes, from mobiles to desktops, ensuring optimal user experience across

Retail OOH (Shopping Centre)

Out-of-Home

Advertising space in UK shopping centres and retail destinations, targeting consumers during shopping trips. High-traffic, location-based OOH format ideal for f

Retargeting

Audience

Retargeting shows ads to users who've previously visited your website or engaged with your brand, keeping you top-of-mind as they browse elsewhere online.

ROAS

Metrics

ROAS measures how much revenue you generate for every pound spent on advertising.

Return on Ad Spend (ROAS)

Metrics

Return on Ad Spend (ROAS) measures revenue generated for every pound spent on advertising. It's a key performance indicator for evaluating campaign profitabilit

Rich Media Ad

Buying

Interactive digital advertisements with embedded video, animation, or user engagement features that go beyond static display ads to capture attention and drive

Right-Hand Page (RHP)

Newspapers

The right-hand page of a newspaper spread, traditionally commanding premium advertising rates due to higher reader engagement and visibility.

Roadside Advertising

Billboards

Large advertisements displayed on billboards positioned along roadsides and highways to reach drivers and passengers in transit.

Robotic Process Automation

AI

Software automation that mimics human actions to execute repetitive marketing and media buying tasks with minimal human intervention.

Robots.txt

Technical SEO

A text file that tells search engine crawlers which pages to index and which to avoid, controlling how bots access your website.

Run of Paper (ROP)

Newspapers

Run of Paper (ROP) is a newspaper advertising placement where your ad appears anywhere within the publication at the publisher's discretion, typically at a lowe

Run of Week (ROW)

Radio & Audio

Run of Week (ROW) is a radio advertising package where your ads are scheduled across an entire week at the station's discretion, offering lower costs than fixed

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