• a finish
• a finishes
• a first
• a flash in the pan
• a flea in the ear
• a flush deck
• a fool and his money (are soon parted)
• a force to be reckoned with
• a foregone conclusion
• a fortiori
• a further
• A gamma Globin
• A Gene

• A Gene Product
• A Genes
• a ghost of a chance
• a giant step/leap/stride
• A GITHAGO
• a go go
• a go-go
• a gogo
• a good bit
• a good deal
• a good hand at
• a good many
• a good way

• a good/bad turn
• a good/bad/big etc. tipper
• a good/great deal of something
• a great deal
• a great degree
• a great extent
• a great many
• a great number
• a greater degree
• a hand
• a hand at
• a handful
• a hands