更
gèng
Expressing "even more" with "geng"
更 means "even more" — it assumes a baseline that's already true.
更 + Adj.
How it works
更好 is "even better", implying the current one is already good. 我想找一个更有钱的男朋友 says the present one isn't poor.
It slots into 比 comparisons for emphasis: 他比我更高.
更 differs from 最 (most) and from 比较 (comparatively, rather).
Examples
wǒ xiǎng zhǎo yí gè gèng yǒu qián de nán péng yǒu
我想找一个更有钱的男朋友。
I want to find an even richer boyfriend.
jīn tiān bǐ zuó tiān gèng lěng
今天比昨天更冷。
Today is even colder than yesterday.
zhè yàng gèng hǎo
这样更好。
This way is even better.