Synonyms for «strong period»

Synonyms for individual words can be found below.

Caribbean Side: Doesn't have waves all year round, it has very flat periods and very strong periods. (dominicalsurfschool.com)
The seasonally strong period is highlighted in dark blue on the chart. (paramountnevada.com)
For most people, it feels like strong period cramps. (plannedparenthood.org)
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