From the ancient battlefields of European countries to present day traffic signs, the pennant has been used by countless different cultures in thousands of different ways throughout history. Wide at one end and tapering to a point, often the same shape as a triangle, the pennant can be a flag or a banner. It is usually made from almost any material and used to symbolize whatever you want it to. Even though there are specific meanings behind certain pennants in the sports world and in ancient cultures, a pennant is only a flag or banner with the triangular shape described.

Many cultures have used a flag or a banner as a symbol of their men and women. Images, particular words or phrases of the people who would be represented on these banners. The banner was then placed in a place where all can see. Usually that was the heart of the city, sometimes the top of a tower, other times on a long pole marching in front of their army. The pennant has often been used as such a banner, and has as a result held great meaning for many through time. Able to at times stopping a war, pennants signaled the arrival of competitors. It can also bring strength to those who are serving under its wave if it holds significance for them.

Baseball frequently uses a pennant or some type of banner. Each team typically has their own personal pennant, and often the team emblem or mascot or both will appear on it. The pennants emerge especially strong during the major and minor league playoff's. There exists a special league pennant that comes out during this period that is awarded to the winning team of the playoff's to be flown with their team’s pennant at their home field. It is fascinating for fans to show their support of their team and happily wave their customized pennant that has the teams mascot or name displayed.

Pennants have also been used for special recognition in the military, usually in honor of one who is deceased, such as in military funerals and commemorative services. The pennant symbolizing the deceased is often flown above the national flag all through the service and sometimes presented to the next of kin after the service out of honor. For centuries the military have used pennants to identify ships or bases, in addition to funeral services. Numbers were given out distinguishing each ship in the navy and were placed on a pennant and flown proudly by the crew.

Today, road construction can also use pennants to advise drivers of work in progress in front of them and to use caution. Orange is easily the most common color of road construction pennants, which are usually placed on either side (or both sides) of a "road work ahead" or "road construction" sign or similar announcement along the area where road construction crews are working.

Private clubs or other kinds of organizations have adopted the use of pennants to indicate something in a unique and creative way. Showing dedication to something or someone, pennants are perfect to imply that particular feeling of pride and team spirit.