Word of the Day — Language Learning
A five-beat vocabulary flashcard that behaves like a video: the word lands at full size on warm paper, the frame hard-cuts to ink so the pronunciation is the only thing on screen, returns to paper for the definition and then for an example sentence written on two vermilion ruling lines above a full-bleed translation band, and signs off on a flat vermilion card with a follow prompt. 22 seconds, 1:1 (1080x1080, 30fps), sized for feed placement and croppable to 4:5 without losing anything. There is no photo, video or uploaded asset anywhere in it — the word is the image — so a 365-word curriculum is one spreadsheet paste and one API call with no asset hosting. Ten fields swap per render: word (the hero, set in Noto Serif JP and repeated at four different sizes across four of the five frames because recognition is the product), word_roman, word_class, pronunciation, meaning, example_native, example_translation, language_label, day_label and series_name. Every composition is centred so the same layout holds a full-width CJK glyph or a narrow Latin one, and a right-to-left cut needs no mirroring.
- Aspect ratio
- 1:1 · Square
- Duration
- ~22s
- Category
- Educational
What you can customize
This template exposes 10 dynamic fields you can swap per video — edit them in the editor or pass them to the API to batch-render variations at scale. The monospace name is the exact key to send in replacements.
Day Label
textday_label128
~10 characters max · 2 lines
Language Label
textlanguage_labelJapanese · JLPT N5
~58 characters max · 1 line
Series Name
textseries_nameWord of the Day
~49 characters max · 1 line
Word
textword木漏れ日
~11 characters max · 1 line
Word Roman
textword_romankomorebi
~41 characters max · 1 line
Word Class
textword_classnoun
~24 characters max · 2 lines
Pronunciation
textpronunciationko·mo·re·bi
~19 characters max · 1 line
Meaning
textmeaningThe light that filters through the leaves of a tree, and the pattern it makes.
~102 characters max · 3 lines
Example Native
textexample_native朝の木漏れ日が、 机の上で揺れていた。
~66 characters max · 2 lines
Example Translation
textexample_translationThe morning light through the leaves was flickering on the desk.
~96 characters max · 2 lines
Render it from the API
Copy either call below. Both already carry this template's ID and its real variable keys — swap the values for your own.
1. Preview it — free
Same body as a render. Costs no credits, creates no job. Returns a public URL that plays the video in a browser, plus a list of problems with your payload — a mistyped key is otherwise ignored in silence.
curl -X POST https://renderly.video/api/v1/previews \
-H "Authorization: Bearer $RENDERLY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"templateId": "word-of-the-day-language-learning",
"replacements": {
"day_label": "128",
"language_label": "Japanese · JLPT N5",
"series_name": "Word of the Day",
"word": "木漏れ日",
"word_roman": "komorebi",
"word_class": "noun"
}
}'2. Render it
Change one word in the URL. Keep templateId — it is what links your call to this template, so later improvements reach you automatically.
curl -X POST https://renderly.video/api/v1/renders \
-H "Authorization: Bearer $RENDERLY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"templateId": "word-of-the-day-language-learning",
"replacements": {
"day_label": "128",
"language_label": "Japanese · JLPT N5",
"series_name": "Word of the Day",
"word": "木漏れ日",
"word_roman": "komorebi",
"word_class": "noun"
}
}'The body above shows 6 of 10 variables. Send any subset — every key you leave out renders its authored default. Read the full contract, with character limits, from GET /api/v1/templates/word-of-the-day-language-learning/variables. See the previewing guide, the rendering guide, or the OpenAPI spec.
Frequently asked questions
How do I customize the Word of the Day — Language Learning template?
Open the template in the Renderly editor and replace its 10 customizable fields (such as Day Label) with your own text, images, or video. Every change previews instantly before you render.
How much does it cost to render this template?
Rendering is credit-based — 1 credit equals 1 minute of 1080p video. You only pay when you export, and credits never expire on the pay-as-you-go plan.
Can I generate this video at scale via the API?
Yes. POST this template's ID and a replacements object to /api/v1/renders — one call per row of data, 10 fields swappable per video. Send the same body to /api/v1/previews first to check it for free. No-code integrations like Zapier work the same way.
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