Signature word
The single word where the gap between two people’s usage is widest — measured as a rate, not a raw count, so whoever writes more doesn’t win by default.
If you just looked for the word one person uses most often in raw terms, the answer would almost always belong to whoever sends more messages overall — that’s a volume effect, not a personality one. Measuring in uses per 10,000 words instead corrects for that, and adding one use to both sides before dividing keeps a word neither person has ever used from producing a division-by-zero. A minimum usage threshold (eight uses total) keeps one-off, meaningless words from winning purely on scarcity.
Example
A signature word shown as "55 vs 0, 101.6x" means one person used that word 55 times and the other zero — a genuinely wide, meaningful gap, not an artifact of one person simply texting more overall.
Frequently asked questions
Can a signature word be a name or a place?+
Yes — nicknames, pet names, and place names are common signature words precisely because they’re unevenly used by nature: one person has a reason to say a name the other rarely does.
Why 10,000 words as the denominator specifically?+
It’s simply a round number that produces readable rates for real chat volumes — the same comparison would work with any consistent denominator, but per-10,000 avoids results like "0.003 uses per word".
Related terms
- Top expressions (chat n-grams)The one-, two-, and three-word phrases someone actually uses most — filtered so the answer isn’t just "the" and "a" in every chat.
- Word count (chat)Whitespace-separated tokens across every text message — a rougher measure than message count, and a fairer one for comparing two people.