Col. is how you write colonel when you do not want the whole word — usually before a family name, as in Col. Chen.

Col. Col.是 is how you write colonel不想寫出整個colonel時的寫法 when you do not want the whole word， usually before a family name通常放在姓氏前面， as in就像 Col. Chen. Col. Chen.（陳上校）這樣。

A colonel is a senior army officer, high up but not at the very top. You use Col. on envelopes, nameplates, captions, and signatures.

A colonel colonel is a senior army officer是一位資深的陸軍軍官， high up but not at the very top地位很高，但還不是最高。 You你 use Col.會用Col. on envelopes, nameplates, captions, and signatures在信封、名牌、圖說和簽名上。

You do not say “Col.” out loud as three letters; you still say the full rank.

You你 do not say不會把 "Col."「Col.」 out loud as three letters唸成三個字母大聲說出來； you你 still say還是會說 the full rank完整的軍階名稱。

Though actually, that full word is a famous spelling trap: colonel sounds like kernel, not like colonial. English kept one spelling and another sound, and nobody cleaned it up.

Though actually不過其實， that full word那個完整的字 is a famous spelling trap是個有名的拼字陷阱： colonel colonel sounds like聽起來像 kernel kernel， not like而不像 colonial colonial。 English英文 kept one spelling and another sound保留了一種拼法，卻用另一種發音， and而且 nobody cleaned it up從來沒有人把它整理乾淨過。

In writing, Col. can also stand for other things (a newspaper column, the US state Colorado, sometimes college), but this entry is only the rank.

In writing在書面文字裡， Col. Col. can also stand for other things也可以代表別的東西 (a newspaper column報紙的專欄、 the US state Colorado美國的科羅拉多州、 sometimes college有時候是college)， but不過 this entry這個條目 is only the rank只講軍階這個意思。