| equilibrium(noun, balance, stability, foothold) |
| establishment(noun, balance, foundation, basis, warrant) |
| field(center, seat, headquarters) |
| fitting(noun, base, station, headquarters, HQ) |
| fixing |
| flange |
| focal point(noun, expression, base, station, headquarters) |
| foot(noun, support, rest, base, balance) |
| foothold(noun, balance, foundation, basis, warrant) |
| frame(noun, support, stand, rack) |
| front row(noun, expression, seats, spaces) |
| fulcrum(noun, base, station, headquarters, HQ) |
| fundament(support, rest, base) |
| garrison(center, seat, headquarters) |
| grip(noun, balance, stability, foothold) |
| hangar(center, seat, headquarters) |
| harbor(center, seat, headquarters) |
| head office(expression, idiom) |
| headquarters(noun, base, center, station, seat) |
| hearing |