Which to use
“Thames” is a name and “theses” is a noun - they look or sound alike but fill different roles in a sentence.
- #10,780
- “Thames” frequency rank
- #22,243
- “theses” frequency rank
- 33023
- confusion score
Side-by-Side Comparison
| Feature | Thames | theses |
|---|---|---|
| Definition | A river in southern England, flowing 336 km (209 mi.) from Gloucestershire, through Wiltshire, Oxfordshire, Berkshire, Buckinghamshire, Surrey and Greater London, and between Essex and Kent to the Thames Estuary and North Sea. | plural of thesis |
Where the spellings diverge
Shared letters are muted; the letters that actually set Thames and theses apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Thames and theses form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They share most of their letters but differ in 2 positions - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 33023, derived from the frequency rank of both members and their visual similarity.
Thames is recorded at frequency rank #10,780, classified as aname, pronounced /tɛmz/. theses is at rank #22,243, tagged as anoun, pronounced /ˈθiːsiːz/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 33023, this pair ranks #332,902 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "Thames" and "theses" be used interchangeably?
Remembering Thames vs theses
The fastest way to pick the right one every time.
- Check the role first: if you need a name, it's “Thames”; for a noun, it's “theses”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “Thames” entry
- Browse more pairs most likely to be confused. Most confusable