bigboulder
nounUK /ˌbɪɡˈbəʊldə/
US /ˌbɪɡˈboʊldər/
A bigboulder is a very large rock.
The children climbed onto the bigboulder near the river.
OTHER MEANINGS
2. A stubborn problem that is hard to move or solve.
The budget deficit became a bigboulder for the new mayor.
3. A person who is very strong and steady.
Our coach is a bigboulder who never panics.
4. A large obstacle blocking progress.
That fallen tree is a bigboulder on our hiking path.