Define

Define

Give a crisp definition first, then a usage example. Match the register to the asker.

English dictionary word (free API)

curl -s "https://api.dictionaryapi.dev/api/v2/entries/en/serendipity" \
  | python3 -c "
import sys,json
d=json.load(sys.stdin)[0]
for m in d.get('meanings',[]):
    pos=m.get('partOfSpeech','')
    for dfn in m.get('definitions',[])[:2]:
        print(f'({pos}) {dfn.get(\"definition\")}')
"

Technical / jargon / acronyms

For domain terms (programming, finance, science) or acronyms, explain directly and plainly:

• one-sentence definition,
• why it matters / where it's used,
• a short concrete example.

Guidance

• Lead with the most common meaning; mention others only if relevant.
• Give one natural example sentence — that's what makes a definition click.
• For non-English words or translation, use the translate skill.
• Keep it short unless the user asks to go deep on etymology/nuance.