畅
chàng
free
unimpeded; smooth; at ease; free from worry; fluent
extend (申) + sound (昜) = smooth and unimpeded flow
申 carries a sense of extending or stretching outward, suggesting something flowing without obstruction. 昜 mainly contributes the sound chàng; the stretching idea in 申 does the semantic work.
今天的交通很畅通，我们很快就到了。
jīn tiān de jiāo tōng hěn chàng tōng, wǒ men hěn kuài jiù dào le。
The traffic today was very smooth, and we arrived quickly.
她说起话来很流畅，让人听着很舒服。
tā shuō qǐ huà lái hěn liú chàng, ràng rén tīng zhe hěn shū fu。
She speaks very fluently, which is pleasant to listen to.
Words with 畅
通畅
tōng chàng
unobstructed; clear
酣畅
hān chàng
unrestrained
酣畅淋漓
hān chàng lín lí
to one's heart's content (idiom)
开畅
kāi chàng
happy and carefree
顺畅
shùn chàng
smooth and unhindered
充畅
chōng chàng
abundant and fluent
宽畅
kuān chàng
with no worries
恬畅
tián chàng
comfortable and happy
畅享
chàng xiǎng
to revel in; to fully enjoy (e.g. an immersive or high-quality experience) (often used in marketing)
畅快
chàng kuài
carefree
畅想
chàng xiǎng
to think imaginatively; to envision freely
畅所欲言
chàng suǒ yù yán
lit. fluently saying all one wants (idiom); to preach freely on one's favorite topic