ETYM French, neck, from Latin collum neck.
(Homonym: call, caul).
A pass between mountain peaks; SYN. gap.
Depression or pass in a mountain range.
Pass between mountain peaks.
Musical term, as in col arco, “with the bow”.

1 colonial
2 colony
3 color; colored
4 column
5 counsel

1 colonel
2 cost of living