Four wastes (正四廢)

A Korean folk custom used when choosing dates for moving or major events.

A day referenced in traditional texts for grave relocation, breaking ground, tending graves and placing memorial stones.

A day traditionally considered suitable for many activities and used when choosing dates.

A day used when choosing dates for various activities, alongside heaven-deaf days.

A traditional name for each date, such as 甲子 or 乙丑. It combines two sets of symbols called stems and branches and repeats every 60 days.

A traditional system that gives each day one of twelve names, such as establish, remove or full. The name comes from comparing the month and day branches.

A traditional cycle of twelve day names, grouped into favorable yellow-path days and cautionary black-path days. It is determined from the month and day branches.

The zodiac traditionally paired as the opposite of the day’s zodiac, such as rat and horse or ox and sheep.

A month that changes at solar terms such as the start of spring, rather than on the first day of a lunar month. It is used with the day’s traditional name to calculate date-selection information.

A traditional five-part description of how the day’s phase relates to the month’s phase. The five phases are wood, fire, earth, metal and water; their relationship supports the overall assessment.

A day when the day and month branches oppose each other, treated as an important caution.

A day explicitly described in traditional texts as unsuitable for all activities.

An important favorable condition found by comparing the date’s name with the month’s traditional rule.

An important favorable condition based on the month’s traditional five-phase grouping.

A favorable day name assigned to each season and given special weight in traditional date selection.

A favorable condition where the day’s stem forms a traditional pair with heavenly virtue.

A favorable condition where the day’s stem forms a traditional pair with monthly virtue.

A day when the day and month branches belong to the same group of three traditionally harmonious branches.

A day when the day and month branches form a traditionally harmonious pair.

A caution condition where the day and month branches are traditionally considered to harm one another.

A caution day traditionally associated with the end of a three-branch group’s energy.

A caution day whose branch opposes the month’s group of three harmonious branches.

A caution day traditionally associated with the burial stage of a three-branch group’s energy.

A caution condition where the day and month branches have a traditional punishment relationship.

A caution day determined by the month’s traditional yin-building branch.

A caution day traditionally associated with the exhausted stage of a three-branch group’s energy.

A caution day traditionally associated with the declining stage of a three-branch group’s energy.

The “level” day name in the twelve-day-officer system, assessed with other caution and favorable conditions.

The “receive” day name in the twelve-day-officer system, assessed with other caution and favorable conditions.

The “close” day name in the twelve-day-officer system, assessed with other caution and favorable conditions.

The six favorable names in a twelve-name date-selection cycle, used as supporting favorable conditions.

The six caution names in a twelve-name date-selection cycle, used as supporting caution conditions.

Six names in the twelve-day-officer system contribute as supporting favorable conditions.

Five names in the twelve-day-officer system contribute as supporting caution conditions.

The day’s phase is flourishing or supported in relation to the month, adding a supporting favorable condition.

The day’s phase is confined or declining in relation to the month, adding a supporting caution condition.

Traditional guidance for choosing a moving date, using favorable and caution entries for moving (般移・移徙). It follows a different rule from Son-eomneun days.

Traditional guidance for choosing a wedding date, using favorable and caution entries for marriage (嫁娶). It does not assess personal compatibility or birth charts.

Traditional guidance for choosing a business-opening date. It uses entries for 開市, opening a market or starting trade, and does not predict business results.

Traditional guidance for choosing a contract date. It uses entries for drawing up documents (立券) and transactions (交易), without assessing legal or financial suitability.

Traditional guidance for choosing the burial date within a funeral. It uses interment (安葬) entries and does not assess every stage of a modern funeral.

Traditional guidance for choosing a ritual date. Unlike other activities, month break or four wastes alone do not immediately mean caution; overlapping conditions are assessed separately.

Traditional guidance for choosing when to open a former grave before relocation, called 啟攢 in the text. The new burial is a separate stage covered by the interment guidance.

The corrected list of thirteen day pillars in Volume 5 supplies a favorable reference for interment.

The corrected list of eleven day pillars in Volume 5 supplies a favorable reference for opening a former burial.

Only the 申-month, 滿-officer, 戌-day condition explicitly given for ritual restrictions is applied, without extending it to other heavenly-dog conventions.