Usage of the character 终

lit. the Mount Zhongnan shortcut (idiom)
fig. shortcut to a high-flying career; easy route to success (an allusion to the Tang Dynasty story of 盧藏用／卢藏用 ( Lú Càngyòng), who lived like a hermit on Mt. Zhongnan in order to gain a reputation for wisdom, which he then used to gain a position in the Imperial Court)

yǒushǐyǒuzhōng

有始有终

[有始有終]

where there's a start, there's a finish (idiom); to finish once one starts sth
to carry things through
I started, so I'll finish.

yǒushǐwúzhōng

有始无终

[有始無終]

to start but not finish (idiom); to fail to carry things through
lack of sticking power
short attention span

yōukǔyǐzhōng

忧苦以终

[憂苦以終]

worried to death (idiom)

línzhōngguānhuái

临终关怀

[臨終關懷]

end-of-life care; hospice care; palliative care

zhōngchéngpàoyǐng

终成泡影

[終成泡影]

(idiom) to come to nothing

cóngyī'érzhōng

从一而终

[從一而終]

faithful unto death (i.e. Confucian ban on widow remarrying)

zhōng'érfùshǐ

终而复始

[終而復始]

lit. the end comes back to the start (idiom); the wheel comes full circle

shòuzhōngzhèngqǐn

寿终正寝

[壽終正寢]

to die of old age
to die in one's bed at a ripe old age
(fig.) (of a structure or machine etc) to come to the end of its life

shǐzhōngbùyú

始终不渝

[始終不渝]

unswerving
unflinching

zhōngduānyònghù

终端用户

[終端用戶]

end user

zìshǐzhìzhōng

自始至终

[自始至終]

from start to finish (idiom)

zhōngchǎngluóshēng

终场锣声

[終場鑼聲]

the final bell (esp. in sports competition)

shǐzhōngrúyī

始终如一

[始終如一]

unswerving from start to finish (idiom)

zhìshǐzhìzhōng

至始至终

[至始至終]

from start to finish

qíngdìngzhōngshēn

情定终身

[情定終身]

(idiom) to pledge eternal love; to exchange marriage vows

sīdìngzhōngshēn

私定终身

[私定終身]

to make a pledge to be married, without parents' approval

bùkězhōngrì

不可终日

[不可終日]

to be unable to carry on even for a single day
to be in a desperate situation

zhōngshēndàshì

终身大事

[終身大事]

major turning point of lifelong import (esp. marriage)

yǐshībài'érgàozhōng

以失败而告终

[以失敗而告終]

to succeed through failure
to achieve one's final aim despite apparent setback

yǒuqíngrénzhōngchéngjuànshǔ

有情人终成眷属

[有情人終成眷屬]

love will find a way (idiom)

mǐbùyǒuchū,xiǎnkèyǒuzhōng

靡不有初，鲜克有终

[靡不有初，鮮克有終]

almost everything has a start, but not many things have an end (idiom); don't start sth you can't handle

yīrìwéishī,zhōngshēnwéifù

一日为师，终身为父

[一日為師，終身為父]

lit. teacher for one day, father for ever (idiom)

bǎoshízhōngrì,wúsuǒyòngxīn

饱食终日，无所用心

[飽食終日，無所用心]

to eat three square meals a day and do no work (idiom)
to be sated with food and remain idle

mǔdansuīhǎo,zhōngxūlüyèfúchí

牡丹虽好，终须绿叶扶持

[牡丹雖好，終須綠葉扶持]

Although the peony is beautiful, it depends entirely on help from the green leaves (idiom). However brilliant you may be, you can't do anything without support from others.