Thai is a tonal language and also have short and long vowels, so some words can sound very similar but different meaning

Similar Sounding Thai Words 1: kao/kaao

ขาว (kǎao) = white
- with long vowel and rising tone.

ฉันชอบสีขาว (chǎn chôp sěe kǎao)
I like white.

เขา (kǎo) = he, him, mountain
- with short vowel and rising tone.

เขาเป็นหมอ (kǎo bpen mǒr)
He is a doctor.

ข่าว (kàao) = news
- with long vowel and low tone.

คุณได้ยินข่าวนั้นรึยัง (kun dâai-yin kàao nán rêu yang?)
Have you heard about the news?

เข่า (kào) = knee
- with short vowel and low tone.

ผมเจ็บเข่า = (pŏm jèp kào) 
My knee hurts.

ข้าว (kâao) = rice
- with long vowel and falling tone.

ไปกินข้าวกัน (bpai gin kâao gun)
Let's go eat!

**Thai people say "gin kâao" and the word "kâao" refers to "meal" like breakfast, lunch and dinner.

เข้า (kâo) = to enter, to get in, to get into
- with short vowel and falling tone.

พวกเขาเพิ่งเข้าไปในบ้าน (pûuak kăo pêrng kâo bpai nai bâan)
They've just got into the house.

เข้า (kâo)
to enter, to get in, to get into