1. the rising tide; the period when the tide is flowing in toward the shore
Usage: nautical; often used in the phrase 'flood tide'
2. a time of peak activity, success, or abundance; a high point
Usage: figurative

Examples

• The floodtide brought water up to the seawall.
• During floodtide, the harbor becomes crowded with boats.
• The company rode the floodtide of the tech boom in the 1990s.
• The floodtide of public support helped the candidate win the election.
• Fishermen know that floodtide is the best time to cast their nets.
• The economy is at its floodtide, with unemployment at record lows.