名詞 annex:

1. an addition that extends a main building
   同義詞：annexe, extension, wing

動詞 annex:

1. take (territory) as if by conquest
2. attach to

1. In the years immediately preceding the outbreak of war in1939, Hitler succeeded in annexing various parts of Europe to Germany without firing a shot.
   在1939年大戰(zhàn)爆發(fā)的前幾年，希特勒沒開一搶而成功地把歐洲許多地區(qū)并吞為德國領土。
2. Japan annexed Korea in 1910.
   日本在1910年吞并了朝鮮。
3. Happiness is not always annexed to wealth.
   財富并不一定會帶來幸福。

an.nex

v.tr.（及物動詞）
an.nexed,an.nex.ing,an.nex.es
To append or attach, especially to a larger or more significant thing.
附加，添加：附加或添加，尤其從屬于一個更大或更有意義的事物
To incorporate (territory) into an existing political unit such as a country, state, county, or city.
合并，吞并：把（一個地區(qū)）并入一個政治單位，如國家，州，郡或城市
To add or attach, as an attribute, a condition, or a consequence.
附帶，附加：作為一個特征，條件或結果而添加或附加
n.（名詞）

A building added on to a larger one or an auxiliary building situated near a main one.
附屬建筑：附屬于大建筑的建筑物或坐落于主體建筑附近的附屬建筑
An addition, such as an appendix, that is made to a record or other document.
附件，附錄：附加于報告或其它文件之中的一個附加物，如附錄

來源：
Middle English annexen
中古英語 annexen
from Old French annexer
源自 古法語 annexer
from Latin annectere annex- [to connect]
源自 拉丁語 annectere annex- [連接]
ad- [ad-]
ad- [前綴，表示.附加.，.添加.]
nectere [to bind] * see ned-
nectere [結合] *參見 ned-

【引伸】
an.nexa.tion
an.nexa.tional
adj.（形容詞）
an.nexa.tionism
n.（名詞）
an.nexa.tionist
n.（名詞）