| express train(expression, idiom, velocity) |
| facsimile telegraph |
| fast telegram |
| figure(determine, call, think, conclude, guess) |
| figure out(expression, determine, call, guess, estimate) |
| forebode(call, suggest, anticipate, forecast, foreshow) |
| foresee(determine, call, think, conclude, guess) |
| forespeak(verb, call, think, conclude, guess) |
| foretell(determine, call, guess, suggest, estimate) |
| forward |
| gather(determine, call, think, conclude, guess) |
| gauge(determine, guess, estimate, calculate, predict) |
| get out(expression, show, communicate, send, air) |
| go on the air(expression, idiom, show, communicate, send) |
| go on the airwaves(expression, idiom, show, communicate, send) |
| guess(determine, call, think, conclude, estimate) |
| have a hunch(verb, expression, idiom, call, think) |
| hazard a guess(verb, expression, idiom, call, think) |
| headlight |
| imply |