Strait

DEF: A narrow sea passage.

Merriam-Webster Online Dictionary
strait (adjective)
1.
archaic - strict rigorous
2.
archaic
a) - narrow
b) limited in space or time
c) closely fitting - constricted tight
3.
a) causing distress - difficult
b) limited as to means or resources
strait (adverb)
obsolete in a close or tight manner
strait (noun)
1.
a) archaic a narrow space or passage
b) a comparatively narrow passageway connecting two large bodies of water - often used in plural but singular in construction
c) - isthmus
2.
a situation of perplexity or distress - often used in plural in dire straits juncture