なかnakaba
1.

A point that represents an equal division, serving as the middle area between two extremes, often used to describe timeframes or distances.

2.

An indication of being in the midst of a process or event, suggesting that something is still ongoing or incomplete.

3.

A description of a state where something is partially true or exists to a considerable extent, without fully reaching completion.

Example:

このボートのエンジンがハワイへの航路のなかばで駄目にならなければよいね。

なかnakabasugi
1.

The period or point in time that occurs after halfway through a certain duration or event.

2.

The stage when something has progressed past its midpoint, often used to indicate a specific time frame in the future.

つきなか月半tsukinakaba
1.

The period that falls around the halfway point of a month, typically encompassing the days from the 10th to the 20th.

2.

The time during a month when the first half has concluded and the second half is about to begin, often associated with significant events or deadlines.

みちなか道半michinakaba
1.

The point in a process or journey that signifies being partially complete, not yet having reached the final destination.

2.

Describing a state of being where one has made significant progress toward a goal, but has not yet achieved it in full.

3.

A moment or phase in an undertaking where one finds themselves making strides, yet still has further steps to take before completion.