Marketing & Advertising Glossary
From CPM to programmatic, every term in advertising and media buying explained in plain English.
Lazy Loading
Landing PagesLazy loading defers the loading of images and content until they're needed, improving page speed and user experience on landing pages.
Lead Magnet
Content & CopyA valuable piece of content or resource offered free to prospects in exchange for contact details, typically used to build email lists and nurture leads.
Lift Study
AttributionA controlled experiment measuring the incremental sales or conversions driven by a specific marketing campaign by comparing exposed and control audiences.
Likelihood to See (LTS)
Out-of-HomeA metric measuring the probability that a target audience will see an out-of-home advertisement based on location, timing, and foot traffic patterns.
Linear TV Advertising
TV & BroadcastTraditional TV advertising delivered in real-time through scheduled broadcast slots on terrestrial, satellite, or cable channels. Viewers watch ads at predeterm
Linear TV
TV & BroadcastLinear TV is traditional television broadcast where ads air at scheduled times across channels, reaching mass audiences in real-time.
Link Velocity
On-Page SEOLink velocity measures the speed at which a website acquires new backlinks. It's a factor Google considers when evaluating site authority and ranking potential.
LinkedIn Thought Leadership
LinkedIn AdsA LinkedIn strategy where industry professionals establish credibility by sharing valuable insights, expertise and original content to build authority and influ
List Hygiene (Email)
Email CampaignsThe process of cleaning and validating email subscriber lists by removing inactive, invalid, or unengaged contacts to improve deliverability and campaign perfor
Listen-Through Rate (LTR)
Radio & AudioThe percentage of listeners who continue listening to a radio or audio ad through to completion, measuring engagement and ad effectiveness.
LoRA
AILoRA is a technique for efficiently fine-tuning large AI models by training only small adapter layers instead of all parameters.
Log File Analysis
Technical SEOExamining server log files to understand how search engine crawlers interact with your website, revealing indexation issues and crawl efficiency problems.
London Underground Advertising
TransitAdvertising on London Underground trains, platforms and stations. Reaches millions of commuters daily across the capital's extensive rail network.
Long-Form Content
Blog ContentLong-form content is in-depth written material, typically 1,500+ words, designed to thoroughly explore a topic and establish authority with audiences.
Long-Tail Keywords
On-Page SEOSpecific, multi-word search phrases with lower search volume that target niche audiences. Long-tail keywords typically convert better than broad terms.
Lookalike Audience
AudienceAn audience segment created by ad platforms to target people similar to your existing customers, based on shared characteristics and behaviours.
Loop Length (DOOH)
Digital ScreensThe duration of a complete advertising sequence on a digital out-of-home (DOOH) screen before it repeats. Typically ranges from 10-60 seconds depending on inven
Loose Insert
MagazinesA promotional item or advertisement physically inserted loose between magazine pages, rather than bound or glued into the publication.
Loss Function
AIA mathematical measure that quantifies how poorly an AI model's predictions differ from actual outcomes, guiding model improvement.
MRAID
BuyingMRAID is a standardised framework enabling rich, interactive ad experiences within mobile apps. It allows ads to expand, play video, and access device features
Macro vs Micro Spot Lengths
TV & BroadcastMacro spots are longer TV advertisements (10-60 seconds), whilst micro spots are brief placements (1-5 seconds). Each serves different campaign objectives and b
Make-Good (TV)
TV & BroadcastA free replacement broadcast or advertising spot offered by a TV station when an originally scheduled ad fails to air or underperforms.
Market Segmentation
StrategyMarket segmentation is the process of dividing a broad market into distinct groups of consumers with similar needs, behaviours, or characteristics.
Marketing Automation
AIMarketing automation uses software to automatically manage repetitive marketing tasks, nurturing leads and personalising customer journeys at scale.
Masthead
Print & PublishingThe masthead is the section of a newspaper or magazine that displays the publication's name, logo, and key publication information, typically appearing on the fro
Mechanical Data (Print)
Print & PublishingTechnical specifications for print advertisements including dimensions, resolution, and file formats required by publishers for correct production and placement
Media Kit (Press Kit)
Print & PublishingA comprehensive marketing document that publishers provide to advertisers, detailing audience demographics, circulation figures, advertising rates, and availabl
Media Kit
Media KitsA media kit is a document publishers provide to advertisers outlining ad placements, pricing, audience data, and specifications available on their platform.
Meta Description
On-Page SEOAn HTML element that summarises page content in 150-160 characters, displayed under the page title in search results to improve click-through rates.
Meta Tags
TrackingHTML code snippets that provide metadata about a webpage to search engines and browsers, controlling how pages appear in search results and on social media.