จำ กัด ความ เร็ว
“จำ กัด ความ เร็ว” (джам кат кхуам рэв) — speed limit in Thai. Noun, level B1. Literally "lock the speed": the first pair limits anything. The sign carries just a number, and these words are heard in road news. In a live sentence: “ทาง นี้ จำ กัด ความ เร็ว ห้า สิบ” — On this road the speed limit is fifty. Written with the characters จ, ำ, ก, ด, ค, ว, า, ม, เ, ร, ว. A word from the everyday Thai course, level B1.
In short
| Written in Thai | จำ กัด ความ เร็ว |
| Read in Latin letters | джам кат кхуам рэв |
| Translation | speed limit |
| Part of speech | noun |
| Level | B1 |
Why it looks that way
Literally "lock the speed": the first pair limits anything. The sign carries just a number, and these words are heard in road news
A word with a story stays in memory longer than one learned as a “spelling — translation” pair: memory holds on to meaning, not to a string.
In a live sentence
A single word almost never appears alone in conversation. A sentence shows where it fits and what stands next to it.
- ทาง นี้ จำ กัด ความ เร็ว ห้า สิบтаанг ний джам кат кхуам рэв хаа сипOn this road the speed limit is fifty
How not to forget this word
Reading a word and remembering it are different jobs. A day later, little survives of a single reading — and that is not bad memory, that is how memory works.
- This has been tested on foreign words too. The difference shows up most when you test yourself a few days later rather than straight away.checked many timesKim & Webb, 2022, Language Learning 72(2) · 48 experiments, 3,411 participants, 98 comparisons.
- Recalling beats re-reading. Covering the translation and trying to remember it does more than reading it ten more times.checked many timesAdesope, Trevisan & Sundararajan, 2017, Review of Educational Research 87(3) · 188 experiments, 272 comparisons. g = 0.61; against plain re-reading 0.51, against passive review 0.93.
- An answer you worked out yourself sticks better than one handed to you.checked many timesBertsch et al., 2007, Memory & Cognition 35(2) · 86 studies, 445 comparisons, d = 0.40.
Frequently asked
How do you say “speed limit” in Thai?
«จำ กัด ความ เร็ว», read “джам кат кхуам рэв”. In a live sentence: “ทาง นี้ จำ กัด ความ เร็ว ห้า สิบ” — On this road the speed limit is fifty. Noun, level B1; written with the characters จ, ำ, ก, ด, ค, ว, า, ม, เ, ร, ว.
How is “จำ กัด ความ เร็ว” written in Latin letters?
джам кат кхуам рэв. This is a practical spelling — you need it to read aloud and be understood, not to meet an academic standard.
Why does this word look the way it does?
Literally "lock the speed": the first pair limits anything. The sign carries just a number, and these words are heard in road news. A word with a story stays in memory longer than a “spelling — translation” pair: memory holds on to meaning, not to a string.