Had to look it up myself because it could have been something else than the name says. :-)
Dimension stone is natural stone or rock that has been selected and fabricated (i.e., trimmed, cut, drilled, ground, or other) to specific sizes or shapes. Color, texture and pattern, and surface finish of the stone are also normal requirements. Another important selection criterion is durability, the time measure of the ability of dimension stone to endure and to maintain its essential and distinctive characteristics of strength, resistance to decay, and appearance.
See link for more.
Was sind Klippen = What are cliffs
Sind jungs denn dumm - ja sind sie = Are boys stupid - yes they are.
There are = Da sind There are = Es sind
Was sind Amphibien? translates as What are amphibians?
Was sind Volkstribunen = What are people's tribunes
sind = are (from the verb sein)
Sind Sparrow was created in 1844.
Sind Regiment was created in 1980.
'Beide Sind 'or 'Beides Sind', but it depends on the context
Wo sind sie = Where are they? Wo sind Sie = Where are you?
'Beide Sind 'or 'Beides Sind', but it depends on the context
Was sind vernarbte Nieren? = What are scarred kidneys?