kept one's shoulder the wheel (verb) keep one's nose to the grindstone: work doggedly
Sinonime: alveolate,
broad, chambered, chasmal,
commodious, concave, curved inward, deep, deep-set, echoing, gaping,
huge,
resonant, reverberant, roomy, sepulchral, socketed,
spacious, sunken,
vast,
wide, yawning
Antonime: filled