สี เดียว
“สี เดียว” (си диао) — plain; solid-colored in Thai. Adjective, level A1. Literally "color one": plain is the whole thing in one color. Assembled from the familiar "color" and "one" — Thai makes no separate word. In a live sentence: “เสื้อ สี เดียว ดู สบาย ตา” — A plain shirt looks calm. Written with the characters ส, ี, เ, ด, ี, ย, ว. A word from the everyday Thai course, level A1.
In short
| Written in Thai | สี เดียว |
| Read in Latin letters | си диао |
| Translation | plain; solid-colored |
| Part of speech | adjective |
| Level | A1 |
Why it looks that way
Literally "color one": plain is the whole thing in one color. Assembled from the familiar "color" and "one" — Thai makes no separate word
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.
- เสื้อ สี เดียว ดู สบาย ตาсыа си диао дуу сабай тааA plain shirt looks calm
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 “plain; solid-colored” in Thai?
«สี เดียว», read “си диао”. In a live sentence: “เสื้อ สี เดียว ดู สบาย ตา” — A plain shirt looks calm. Adjective, level A1; written with the characters ส, ี, เ, ด, ี, ย, ว.
How is “สี เดียว” written in Latin letters?
си диао. 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 "color one": plain is the whole thing in one color. Assembled from the familiar "color" and "one" — Thai makes no separate word. A word with a story stays in memory longer than a “spelling — translation” pair: memory holds on to meaning, not to a string.