Isabella vs Thi
Isabella and Thicompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.
Head to head
Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.
England and Wales · Girls
In 2000, Isabella was ranked #64 and Thi #3247 among girls in England and Wales.
Norway · Girls
In 2005, Isabella was ranked #97 and Thi #619 among girls in Norway.
Isabella and Thi over time
Isabella and Thi appear together in 1 published list, across 29 years of shared records. Thi held the stronger position in more years in 1 of them, Isabella in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Thi reached its own highest recorded position earlier in 1 of those lists, and Isabella in none. Each position is a place inside its own list, so this compares when they peaked and never how high.
Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.
How this pair is related
The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.
- Mirrored each other
Over 29 shared years in Norway · Girls, Isabella rose about as far as Thi fell — from #472 and #274 in 1960 to #97 and #619 in 2005.
List by list
Norway · Girls29 shared years, 1960–2005
Isabella held the stronger position in 6 of those years, Thi in 23.
Highest recorded here: Isabella #97 in 2005, Thi #116 in 1983.
The order changed in 1998: Isabella moved ahead. In 1997 they stood at #331 and #303; by 1998 that had become #269 and #632.
Most recent shared year, 2005: Isabella #97, Thi #619.
Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.
Where to go next
Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.
Other comparisons involving Isabella
Pairs where Isabella shares a published list with another name, each measured inside one registrar's own list.
- Isabella vs Stacey
In 1996 they stood at #106 and #97 in England and Wales · Girls, 9 places apart; by 2024 they were #11 and #3015.
Isabella · Stacey · 29 shared years, 1996–2024 · Started together, ended far apart
- Isabella vs Charlie
In 1996 they stood at #106 and #113 in England and Wales · Girls, 7 places apart; by 2024 they were #11 and #837.
Isabella · Charlie · 29 shared years, 1996–2024 · Started together, ended far apart
- Isabella vs Eva
Over 52 shared years in Norway · Girls, Isabella rose about as far as Eva fell — from #472 and #13 in 1960 to #122 and #22 in 2025.
Isabella · Eva · 52 shared years, 1960–2025 · Mirrored each other
- Isabella vs Stine
Over 52 shared years in Norway · Girls, Isabella rose about as far as Stine fell — from #472 and #215 in 1960 to #122 and #384 in 2025.
Isabella · Stine · 52 shared years, 1960–2025 · Mirrored each other
Side by side
| Field | Isabella | Thi |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | My God is an oath (via Elizabeth). | Not yet recorded |
| Origin | Spanish/Italian, via Elizabeth | Not yet recorded |
| Pronunciation | /ˌɪzəˈbɛlə/ | Not yet recorded |
| Syllables | 4 | 1 |
| Common variants / nicknames | Bella, Izzy, Isabel, Isobel | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | GB-ENW, NO |
| Most recent popularity observation | New South Wales, Australia · Girls #17 (2025) | Norway · Girls #619 (2005) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 76/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | high | medium |
What the data shows
- Isabella has a recorded origin (Spanish/Italian, via Elizabeth); Thi does not have one recorded yet.
- Isabella has 4 syllables, compared with 1 for Thi.
- A meaning is recorded for Isabella; Thi doesn't have one written yet.
- Both names have recorded usage in GB-ENW, NO.
- The available evidence gives Isabella a "high" Data Confidence level and Thi a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Isabella
Popularity journey
First recorded1960
First recorded at #472 among girls in Norway in 1960 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1993–2025
Highest recorded position: #1 among girls in New South Wales, Australia, in 2007 (recorded 1993–2025).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #17 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls
Thi
Popularity journey
First recorded1945
First recorded at #354 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1945–2005
Highest recorded position: #116 among girls in Norway, in 1983 (recorded 1945–2005).
Norway · Girls
Most recent2005
Most recently recorded at #619 among girls in Norway, in 2005.
Norway · Girls