Underground.
under-ground
backgroundbattlegroundcampgroundfairgroundforegroundplaygroundunderground
The word is playground.
playground
Yes it is. Play and ground is a word and it has a meaning
"Underground" is a compound word with secondary stress on the second syllable ("ground").
Yes, "background" is a compound word, consisting of the words "back" and "ground" combined to form a single word with its own meaning.
inside is the compound word. in and side.
No, "cricket ground" is two words.
backyard front yard
background campground foreground groundswell groundwork playground underground
Play playpen playtime playground playmate