Use our cousin chart to settle the debate once and for all! Cousins are people who share a common ancestor that is at least 2 generations away, such as a grandparent or great-grandparent. You and your siblings are not cousins because your parents are only 1 generation away from you. The number associated with your cousin has to do with how many generations away your common ancestor is. For example:. However, keep in mind that this trick only works if you are both the same number of generations removed from the common ancestor. Sometimes you and your cousin may share a common ancestor, but you each call this ancestor something different. You, your siblings, and your first, second, and third cousins are all of the same generation. This is because your parents and their generation are 1 above yours. This pattern continues throughout each generation.

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Relationship Terms
Commonly " cousin " refers to a "first cousin", a relative whose most recent common ancestor with the subject is a grandparent. Degrees and removals are used to more precisely describe the relationship between cousins. Degree measures the separation, in generations, from the most recent common ancestor to one of the cousins whichever is closest , while removal measures the difference in generations between the cousins themselves. To illustrate usage, a "second cousin" is a cousin with a degree of two. When the degree is not specified first cousin is assumed. A cousin that is "once removed" is a cousin with one removal. When the removal is not specified no removal is assumed. Various governmental entities have established systems for legal use that can precisely specify kinship with common ancestors any number of generations in the past, for example, in medicine and law, a first cousin is a type of third-degree relative. People are related with a type of cousin relationship if they share a common ancestor, and are separated from their most recent common ancestor by two or more generations.
What Is a Cousin?
If someone walked up to you and said "Howdy, I'm your third cousin, twice removed," would you have any idea what they meant? Most people have a good understanding of basic relationship words such as "mother," "father," "aunt," "uncle," "brother," and "sister. Terms like "second cousin" and "first cousin, once removed"? We don't tend to speak about our relationships in such exact terms "cousin" seems good enough when you are introducing one person to another , so most of us aren't familiar with what these words mean. Sometimes, especially when working on your family history, it's handy to know how to describe your family relationships more exactly. The definitions below should help you out. Cousin a. In other words, they are the children of your aunts and uncles.
If you can't keep your third cousins and your first cousins twice removed straight, you are not alone. But there's a simple way to figure out the relationships between relations. First cousins share a grandparent, second cousins share a great-grandparent, third cousins share a great-great-grandparent, and so on. The degree of cousinhood "first," "second," etc.