Pinyin "xin4"

In MandarinBanana's mnemonic system, the Pinyin syllable "xin4" is split up into two parts: "xi" and "(e)n4". You can visit the Pinyin index to see how other Pinyin syllables are split up into initials and finals.

Mnemonics for Pinyin initial "xi"

Xi is for Marie Curie.
Alternative mnemonic for xi: Xi Shi (西施), one of the renowned Four Beauties of ancient China.

Mnemonics for Pinyin final "(e)n4"

In the encampment's bathroom.

Characters pronounced xin4

信
xìn = xi + (e)n4
letter / mail / CL:封[feng1] / to trust / to believe / to profess faith in / truthful / confidence / trust / at will / at random
信 = 亻 + 言 : Marie Curie and Rosa Luxemburg are reading a letter of Karl Marx to the public in the encampment's bathroom. To make the message really come across to the people they use a megaphone.
芯
xìn = xi + (e)n4
core
衅
釁
xìn = xi + (e)n4
quarrel / dispute / a blood sacrifice (arch.)
衅 = 半 + 血 : Marie Curie (xi) and King Solomon (半) both need a blood transfusion (血) in the encampment's bathroom ((e)n4) badly and they have a big fight (衅) about it. Even King Solomon's suggestion to just cut the bag in half (半) doesn't calm down Marie.
舋
xìn = xi + (e)n4
variant of 釁|衅 / quarrel / dispute / a blood sacrifice (arch.)
囟
xìn = xi + (e)n4
fontanel (gap between the bones of an infant's skull)
㐰
xìn = xi + (e)n4
old variant of 信[xin4]
伩
xìn = xi + (e)n4
variant of 信[xin4] (originally meant as part of the second round of simplified Chinese characters)
焮
xìn = xi + (e)n4
heat / flame / inflammation