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すべての用語を、やさしい英語で。
クリエイティブとコンテンツ全体の実務参照集です。— 戦略、コピーライティング、ビジュアルおよび動画制作、フォーマット、テスト、指標、SEO、ブランディング、運用を網羅しています。
50+
定義済み用語数
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対象分野数
A–Z
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A
Aspect Ratio (Video)
The proportional relationship between a video's width and height, expressed as two numbers separated by a colon (e.g., 16:9).
動画＆モーションコンテンツAuto-Play
Auto-play is a video playback setting where content starts automatically when a user scrolls to it, without requiring a click.
B
B-Roll
B-roll is supplemental footage intercut with the main shot (A-roll) to enhance storytelling, provide context, or cover edits.
動画＆モーションコンテンツBackground Music (Ad)
Background music in ads is the audio track that plays under dialogue or visuals to set mood, reinforce brand identity, and guide emotional response.
動画＆モーションコンテンツBefore/After Video
A video format showing a transformation from an initial state (before) to a final state (after), often used to demonstrate product efficacy or results.
動画＆モーションコンテンツBehind-the-Scenes Video
A behind-the-scenes video shows the unscripted, candid process of creating a product, campaign, or event, building authenticity and trust.
C
Cinemagraph
A cinemagraph is a still photograph in which a minor and repeated movement occurs, forming a video loop that plays seamlessly.
動画＆モーションコンテンツClosed Captions
Text on a video screen that displays spoken dialogue and other audio cues, typically for accessibility or viewer convenience.
動画＆モーションコンテンツCutdown (Video Edit)
A cutdown is a shorter version of a longer video, edited to fit a specific platform, audience, or objective while retaining the core message.
L
Live Video
Live video is real-time, unscripted streaming content that allows brands to engage audiences with authenticity and immediate interaction.
動画＆モーションコンテンツLong-Form Video
Long-form video is any video content typically exceeding 10 minutes, used for deep storytelling, education, or entertainment, often on platforms like YouTube.
動画＆モーションコンテンツLooping Video
A looping video is a short, seamless clip that repeats continuously, designed to hold attention without a clear start or end.
M
Match Cut
A match cut is a film editing technique where two shots are linked by a visual, auditory, or conceptual similarity, creating a seamless transition.
動画＆モーションコンテンツMotion Graphics
Animated graphic design elements (text, shapes, illustrations) combined with audio to communicate a message or tell a story.
S
Short-Form Video
Short-form video is a video format typically under 60 seconds, designed for quick consumption and high engagement on social media platforms.
動画＆モーションコンテンツShot List
A shot list is a detailed breakdown of every camera shot planned for a video production, specifying shot type, angle, movement, and duration.
動画＆モーションコンテンツSilent-First Design
A video design approach where the audio is muted by default, relying on visuals, captions, and on-screen text to convey the message.
動画＆モーションコンテンツSound Design
Sound design is the art of creating and manipulating audio elements—dialogue, music, effects, ambience—to enhance storytelling and emotional impact in video content.
動画＆モーションコンテンツSound-Off Viewing
Sound-off viewing refers to watching video content without audio, relying on visuals, captions, and on-screen text to convey the message.
動画＆モーションコンテンツSquare Video
A video formatted in a 1:1 aspect ratio, typically 600x600 pixels, optimized for mobile feeds and social media platforms.
動画＆モーションコンテンツStop Motion
Stop motion is an animation technique that physically manipulates objects frame-by-frame to create the illusion of movement.
T
Talking Head Video
A video format where a person speaks directly to the camera, often used for testimonials, explainers, and social media ads.
動画＆モーションコンテンツTestimonial Video
A testimonial video features a real customer sharing their positive experience with a product or service, used as social proof to build trust and drive conversions.
動画＆モーションコンテンツText Overlay (Video)
Text overlay in video refers to on-screen text superimposed over video footage, used to emphasize key messages, provide context, or improve accessibility.
U
UGC Video
UGC (User-Generated Content) video is authentic, unpolished video footage created by real customers or users, often used in advertising to build trust and social proof.
動画＆モーションコンテンツUnboxing Video
A video recording of a product being unpackaged for the first time, often focusing on the unboxing experience, packaging quality, and initial impressions.
V
Vertical Storytelling
Vertical Storytelling is the art of crafting narratives specifically for vertical video formats, optimizing composition, pacing, and engagement for mobile-first, full-screen viewing.
動画＆モーションコンテンツVertical Video
A video format optimized for portrait orientation, typically 9:16 aspect ratio, designed for mobile-first viewing on social platforms.
動画＆モーションコンテンツVideo A/B Test
A method where two or more video variants are shown to different audience segments to determine which performs better on a specific metric.
動画＆モーションコンテンツVideo Ad
A video ad is a paid, motion-based promotional message distributed via digital or broadcast channels to drive awareness, engagement, or conversion.
動画＆モーションコンテンツVideo Ad Sequencing
A strategy where multiple video ads are served in a specific order to tell a sequential story or guide viewers through a funnel.
動画＆モーションコンテンツVideo Completion Rate
The percentage of viewers who watch a video to its end, measuring content engagement and retention.
動画＆モーションコンテンツVideo Editing
Video editing is the process of selecting, arranging, and manipulating video clips, audio, and effects to create a coherent, engaging final video.
動画＆モーションコンテンツVideo Hook
The opening seconds of a video designed to grab attention and convince viewers to keep watching.
動画＆モーションコンテンツVideo Hook Rate
The percentage of viewers who watch the first 3 seconds of a video, indicating how compelling the opening is.
動画＆モーションコンテンツVideo Pacing
Video pacing is the rhythm and speed at which scenes, cuts, and audio elements unfold to control viewer engagement and emotional response.
動画＆モーションコンテンツVideo Retargeting Creative
Video retargeting creative is a video ad designed specifically to re-engage users who have previously interacted with a brand but did not convert.
動画＆モーションコンテンツVideo Storyboard
A video storyboard is a sequence of drawings or images that pre-visualizes key frames of a video, mapping out shots, transitions, and audio cues before production.
動画＆モーションコンテンツVideo Thumbnail
A video thumbnail is a static preview image that represents a video, designed to entice viewers to click and watch.
動画＆モーションコンテンツVideo Watch Time
Video watch time is the total duration a viewer spends watching a video, a key metric for engagement and content effectiveness.
動画＆モーションコンテンツVoiceover
Voiceover is a production technique where a narrator's voice is recorded and used in video or audio content, typically not visible on screen.