Position Or Direction

Front 1

ab-

Back 1

Away from

Front 2

ad-

Back 2

Toward

Front 3

ante-, pre-

Back 3

Before in time or in place

Front 4

circum-, peri-

Back 4

Around

Front 5

contra-

Back 5

Against or opposed

Front 6

dia-

Back 6

Through

Front 7

ecto-, ex-, exo-, extra-

Back 7

Outside, without, away from

Front 8

en-, end-, endo-

Back 8

Inside

Front 9

epi-

Back 9

Above, on

Front 10

hypo-, infra-, sub-

Back 10

Beneath, under

Front 11

inter-

Back 11

Between

Front 12

intra-

Back 12

Within

Front 13

ipsi-

Back 13

Same

Front 14

meso-, mid-

Back 14

Middle

Front 15

para-

Back 15

Near, beside, or abnormal

Front 16

per-

Back 16

Through or by

Front 17

post-

Back 17

After, behind

Front 18

retro-

Back 18

Behind, backward

Front 19

super-, supra

Back 19

Above, beyond

Front 20

sym-, syn-

Back 20

Joined, together

Front 21

trans-

Back 21

Across