Oblong
An oblong is a rectangle sloped along a diagonal. The length of the longer sides is the same as the number of letters in the longest word.
Left: Right:
R P
RES DAG
CACHE BIRLE
RATTING RESLIDE
RECTANGLE RECTANGLE
SHINGLING RECHANTED
ENGLISHES BECHANCED
GLISTENED DISTANCED
ENHERITED PARLANCES
GENITAL GLINTED
SETAL EDGED
DEL ELD
D E