SIZE 大小, [I] also swell up to become larger and rounder than normal – used especially about parts of the body

肿，肿胀〔尤指身体部位〕;

Her ankle was already starting to swell.

她的脚踝已经开始肿起来了。

The window frame was swollen shut.

窗框胀得变了形，窗子关得死死的。

AMOUNT / NUMBER 数量, [I,T] to increase in amount or number

〔数量〕逐渐增加，（使）增多，增大:

The crowd swelled to around 10,000.

人群扩大到 10,000 人左右。

The river was swollen with melted snow.

积雪融化，河水上涨。

Large numbers of refugees have swollen the ranks of the unemployed.

大量的难民壮大了失业人口的队伍。

swell with pride / anger etc, to feel very proud, angry etc

洋洋得意/怒气冲冲等:

His heart swelled with pride as he watched his daughter collect her prize.

他看着女儿领奖，心中充满了自豪。

SHAPE 形状, [I,T] also swell out to curve or make something curve

（使）鼓起，（使）隆起:

The wind swelled the sails.

风鼓起了船帆。

SOUND 声音, [I] [literary] to become louder

〔声音〕增强，变响亮:

Music swelled around us.

音乐声在我们四周越来越响。

SEA 海, [I] to move suddenly and powerfully upwards

波涛汹涌

[sing.] the way the sea moves up and down

海面的起伏，浪涌:

The sea wasn't rough, but there was a heavy swell (=large movements of the water) .

海面虽不算是波涛汹涌，但起伏很大。

[sing.] a situation in which something increases in number or amount

增加; 增多:

the growing swell of anti-government feeling

反政府情绪的日益高涨

a swell of pride

自豪感的增强

[sing.] an increase in sound level, especially in music

〔尤指音乐〕音量逐渐增强;

[sing.] the roundness or curved shape of something

膨胀; 鼓起; 隆起:

the firm swell of her breasts

她挺拔的乳峰

[C] [old-fashioned] a fashionable or important person

时髦人物; 头面人物，要人

very good

极好的，第一流的;

You look swell!

你看上去漂亮极了！