グランド

ぐらんど
noun
sports field; ground
sports
1. sports field; athletic ground
An open field used for sports, especially baseball, soccer, or track and field.
We practice baseball on the field.
The field can't be used because of the rain.
There are people running on the field from early morning.
2. grand
Used as a prefix meaning 'grand' in loanword compounds.
グランドピアノ
grand piano
Example of 'grand' prefix usage
A new shopping mall had its grand opening in front of the station.
The lobby of the Grand Hotel was spacious and luxurious.

グランド can mean either "ground" (sports field) or "grand" depending on context.

COMMON COLLOCATIONS (sports field):

COMPOUNDS (grand):

Writing

For the sports field, グラウンド is the spelling closer to English "ground" and is the usual one in official use.