The Chinese word for Tuesday is
星期二

xīng qī èr

Chinese Definition

Tuesday
1. 名词. 星期二
Components
星
1. transliteration of Indian name Singh
期
1. to arrange a time; to engage; to arrange to meet
不期而遇 - to meet unexpectedly or by chance
2. (literary) to meet; to gather
3. to hope; to wish; to expect
期待 - to look forward to
未來可期
4. date; specific day; scheduled time
限期 - deadline
5. (Cantonese) time slots; schedule
我今個月啲期全部爆嗮。 - All my time slots are filled this month.
6. period of time; stage
學期 - semester
青春期 - adolescence
7. (geology) age (geochronologic unit)
8. (obsolete) undoubtedly; certainly
9. (obsolete) limit
10. (obsolete) good fortune; chance
11. (obsolete) one-year anniversary
12. (historical, obsolete) one-year mourning (garment) for the death of a senior family member
二
1. two
二號線 (èr hào xiàn) - line no. 2
2. second
二哥 - second elder brother
二意 - tr=èryì -
二心 - tr=èrxīn -
3. (handwritten, dated, now, informal) (An iteration mark denoting the repetition of the previous hanzi; often written at a smaller size when used for this purpose.)
Synonyms: 々, 〻
4. Short for "twenty, two hundred or two thousand" after hundreds, thousands and ten thousands.
※ (Such a definition of a number results from a number's being used without a unit after a quantity with both a value (exists even if hidden) and a unit to indicate the quantity with the value
百二 - one hundred twenty
百二 (pah jī) - one hundred twenty, MN
買電腦花了一千二。 (Mǎi diànnǎo huā le yī qiān èr.) - Buying the computer cost me a thousand and two hundred bucks.
5. Short for "twenty cents".
黃瓜一塊二一斤。 (Huángguā yī kuài èr yī jīn.) - The cucumbers are one dollar twenty per half kilogram.
6. (dialectal Mandarin) stupid, dumb; silly, thick, lacking mental agility (often in a cute way)
你這人怎麼這麼二！ (Nǐ zhè rén zěnme zhème èr!) - Why are you so incorrigibly stupid!
7. (HKC, school slang) to obtain a level two in a subject in DSE (exam) (usually implies failing the subject)
我中文man4-2 二咗，入唔到 Uju1。 - I got a level two in Chinese, can't get into university.
8. (classical) Alternative form of 貳; usually limited to the simplified script
不二过 - tr=bù'èrguò
9. usage. See 兩 - Usage notes.