The time the club spends at the top of the swing.

Interval between the time the accelerator is pressed and the engine can react.

An interval of time before additional flow enters the system.

the time between one event, process, or period and another

(p. 18) A lag just means that something in time t is a function of stuff in time t-1. For example, in the case in the text where Nordhaus discusses lagged labor inputs, he is saying that production today is a function of labor inputs last year and the year before.

When your computer has frozen and is not responding to requests or not accessing web site requests, lag is the length of time the event occurs for.

The time it takes a flood wave to move downstream.

The amount of time between making an online request or command and receiving a response. Until lag time becomes no time at all the internet will not be consumer-friendly, and its profit potential will remain limited.

The amount of time from default to liquidation.

The distance between the static measure point and the dynamic measure point of a logging measurement. For nuclear logs and any others that must be recorded over a significant time period, there is a difference between the measure point with the tool stationary and moving. If the tool is moving during this period, the effective centre of measurement will be a certain distance from the point at which the measurement started. This distance is the lag. The lag depends on the logging speed and the sampling interval