The 'air', 'land', and 'sea' groupPreviousNext
These nouns are used to indicate whether people travel, or things are transported, through the air, across land, or over water. Canal, river, and road are count nouns.
by air by canal by land by river by road by sea by water
'I have to travel by air a great deal and I hate it,' she says.
Also under consideration are measures to stop the flow of essential goods into the republics by land.
It is accessible by road only in the winter.
As so often on such visits, he arrived by sea, on the battle-cruiser Galicia.