A student paper prints this: 'Canteen waste means leftover food thrown out at lunch, such as half eaten rice, fruit peels and untouched vegetables.' Which kind of definition is this?

One paper on screen time offers two definitions. A: 'the part of a day a person spends attending to a digital display.' B: 'the total minutes of phone, tablet and laptop use each learner writes in a daily log.' Which is operational?

A town magazine article on flooding will be read by people who have never studied rivers. Which kind of definition of 'catchment' does that audience call for?

A team has to report how many learners in each section arrived late during one school week. Which kind of definition of 'late' does that counting work require?

An introduction must tell readers what 'reading habit' generally means before the study narrows the term for its own use. Which kind of definition belongs in that opening?

A paper states: 'Flood preparedness is a household's readiness to protect its members and property from rising water.' The wording is precise. Which kind of definition is it?

Consider this explanation: 'A literature review is like a conversation among studies. The writer listens first and then joins in, instead of speaking alone as a plain report does.' Which method does this expanded definition use?

A waste study explains: 'Household waste falls into three groups: biodegradable scraps, recyclable containers, and residual items that go to landfill.' Which method does this expanded definition use?

A coastal report explains: 'A seawall works by breaking the force of incoming waves, so the water that reaches the shore road carries far less energy.' Which method does this expanded definition use?

A climate paper explains: 'The term urban heat island came from early city weather watchers, who noticed town readings staying warmer at night than the farmland just outside.' Which method does this expanded definition use?

Two definitions of commuting time sit in one draft. A: 'the minutes between leaving home and reaching the school gate, taken from each learner's travel diary.' B: 'the time a learner spends moving between home and school.' Which is operational?

A sleep study states: 'Sleep is counted as the hours from lights out to the morning alarm, written on a bedside chart each night by the learner.' Which kind of definition is this?

A media handbook says: 'A vlog is a diary kept in video. The speaker talks to the camera much as a diary writer talks to the page.' Which kind of definition is this?

A definition can sound exact and still fail to be operational if it names no way to observe, count or record the thing.

A nutrition paper states: 'Food insecurity is the condition of not having reliable access to enough safe and nourishing food.' Which kind of definition is this?

A heat study drafts two definitions. A: 'Urban heat is the extra warmth a built up area holds compared with nearby countryside.' B: 'Urban heat is how many degrees Celsius the plaza reads above the farm road at 8 p.m.' Which is operational?

Readers of a school paper on flooding keep mixing up 'weather' with 'climate'. Which kind of definition would clear that confusion up best?

Two researchers tallying canteen trays must agree, meal by meal, on which ones count as 'balanced'. Which kind of definition do they need?

A health booklet says: 'Quarantine comes from the Italian words for forty days, the time ships once had to wait before their crews could land, which is why it still means a period of keeping apart.' Which kind of definition is this?

A study defines stress as 'the strain a learner feels when demands outrun the resources they have.' Why is that definition not yet operational?