| English thesaurus | |||
| |||
| Lights placed across the ends of a runway or landing strip to indicate its usable limits | |||
|
threshold : 42 phrases in 18 subjects |
| English thesaurus | |||
| |||
| Lights placed across the ends of a runway or landing strip to indicate its usable limits | |||
|
threshold : 42 phrases in 18 subjects |