英语单词中的前缀是位于词根前面的部分，它们可以改变单词的意思。以下是一些常见的前缀及其意义：

表示正负或增减 ：

un-

in-

im-

il-

ir-

non-

mis-

mal-

dis-

anti-

de-

under-

re-

over-

表示尺寸 ：

macro-

micro-

mini-

equi-

mega-

semi-

表示位置关系 ：

inter-

super-

trans-

ex-

extra-

sub-

infra-

peri-

表示时间和次序 ：

ante-

pre-

prime-

post-

retro-

表示数字 ：

bi-

tri-

quad-

penta-

hex-

sept-

oct-

dec-

multi-

其他类别 ：

co-

trans-

pro-

auto-

con-

a-/an-

ac-

ag-

amphibi-

arch-

anti-

dis-

ex-

in-

im-

il-

ir-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans-

anti-

macro-

micro-

trans