X

xylene

xylem ray

xylem

xylan

XY recorder

XXY syndrome

XX

Xuzhou

XUV

Xuthus

Xun Zi

Xuan-tong

Xuan Zong

Xuan Zang

Xuan Tong

xu

Xty.

Xtian.

Xt.

XS

x-ray

X-rated

xr

XQ

XP

Xosa

XOR

Xochimilco

xoanon

XO syndrome