Here is a list of the various terms you may encounter while checking out idol goods either here or elsewhere.
- 2D idol: Refers to idols that exist solely in the 2D space such as Hatsune Miku
- 2.5D idol: Sometimes used to refer to an idol franchise that has both 2D and 3D elements, such as LoveLive, 22/7. In other cases 2D/3D may be used instead
- 3D idol: Refers to strictly real-life idols, such as AKB48, Morning Musume.
- A4 Clearfile: See Clearfile.
- Aqours: The second group in the Love Live! franchise. They were introduced in 2015 and went on to star in Love Live! Sunshine!!, Love Live! Sunshine!! the School Idol Movie: Over the Rainbow, and Genjitsu Yohane: Sunshine in the Mirror. Aqours is the most senior active group in the franchise and has enjoyed sustained popularity through both frequent, polished live performances and enthusiastic community engagement, driving vital tourism to the seaside locale of Numazu, Shizuoka, the home of the fictional version of the group.
- A-RISE: The three-person rival group of Muse, also hailing from Akihabara, but instead attending an elite, high-tech high school and eventually receiving professional management.
- B2 Poster: Paper posters measuring 50 by 70.7 cm, or 19.7 by 27.8 inches.
- Bromides: Collectable photos. These normally feature the seiyuu rather than their anime counterparts, although some may have the character or a group of seiyuu.
- Concert Stick: Known as penlights, kingblades, or lightsticks, these lights are used during concerts to cheer on idols or participate in community projects. All LL events have no restriction on which penlights you use, although many try to at least use one from the series while some non-LL concerts may restrict use.
- Clearfile: Folder featuring artwork from a series. Styles and measurements vary, but A4 size is most common.
- Chuusen: Term used by the idol/anisong community to refer to the process of applying to attend a Japanese concert. Some items may include codes to initiate an application.
- D4DJ: Multimedia franchise created by Bushiroad, this focuses on the DJ aspect of music. A few LL seiyuu are in D4DJ in different units
- Dekimasen: Term mainly used by the LL community to refer to the loss of a lottery round.
- Gacha (Gachapon): Randomized items sold in blind-bags or capsules.
- Granblue Fantasy: A RPG developed by Cygames, a company well known for its Shadowverse card game. They have collaborated with LL to create two unique story events featuring both Aqours and µ's.
- THE IDOLM@STER (IM@S): Idolmaster is a media franchise created by Bandai Namco that originally started as an arcade game and has since grown to include anime, audio drama, live events. Similar to LoveLive, the series contains multiple groups
- Kingblade: See Concert stick.
- Liella!: The fourth main group in the Love Live! franchise. Five rookie seiyuu, including the notable Chinese Love Live! cosplayer Liyuu, were selected for this once-secretive anime and live music project. Instead of starting as a group of nine members evenly divided between school years, Liella's original five members were first-years at a newly-opened school, and each season of their anime follows one year of their high school life, adding new friends to Liella's roster with each season.
- Lightstick: See Concert stick.
- Live: LoveLive! series' name for concerts.
- Love Live!: Multimedia project spanning animated series, video games, live concerts, and written stories, driven by fan votes and suggestions. In the world of the franchise, Love Live! is a competition held twice a year, pitting school-age amateur idols and groups from across Japan against each other to perform their music for regional and national televised audiences. These performers, called "school idols", generally compete with completely self-made material, from music and choreography to stage and wardrobe.
- Muse (officially written as µ's): The first group in the Love Live series, who starred in the Love Live! School Idol Project anime, Love Live! the School Idol Movie, and various magazine projects starting in 2010. In their story, the members of Muse attend a sleepy high school near Akihabara, and in order to keep their beloved school open, decide to enter the Love Live! music performance competition as one of many self-made idol groups. Muse was beloved by anime fans across the world, launching the careers of its member voice actresses and vocalists like Yoshino Nanjo, Sora Tokui, Pile, and Suzuko Mimori into the stratosphere, before disbanding in 2016.
- Morning Musume: Founded in 1997, Morning Musume is a real-life idol group as part of the Hello! Project music collective
- Nesica: One of several cards used in arcades to save game data.
- Nijigasaki High School Idol Club: The third primary group in the Love Live series, originally announced as the Perfect Dream Project in 2017 and going on to star in Love Live! School Idol Festival All Stars, their eponymous anime series, and the Nijiyon cartoon. In the story, the group is based in a futuristic elite girls' academy in Odaiba, and contains a global gang of 12 members from Japan, Switzerland, America, and Hong Kong, alongside a cool-headed manager who does not perform, but writes the group's music and treasures each one as shining stars onstage.
- Penlight: See Concert stick.
- Photobook (pb): A book released to promote a seiyuu featuring color photos of them in various locations, outfits, and poses. Please note that some PBs could contain sexually-suggestive images.
- Polaroid style trading card: Trading cards styled after Instax mini-size instant photos. Compatible with Instax-size holders and albums.
- Saint Snow: The rival group of Aqours, appearing in the Love Live! Sunshine!! anime and movie, After School Activity, and School Idol Festival. First-year Leah Kazuno and her third-year sister Sarah Kazuno hail from Hokkaido and perform edgy music with ice-cold attitude. Leah and Sarah's voice actresses, Hinata Sato and Asami Tano, are also notable for starring in other musical girl-power anime, with Hinata being in Revue Starlight and D4DJ, and Asami in Smile Pretty Cure! and Zombieland Saga.
- School Idol Collection: A trading card game using assets from the School Idol Festival mobile game, starring only Muse, Aqours, and Saint Snow. Supports solo play and unlimited players -- scout girls from your deck, play them on your stage, get them together to sing songs, and reach 9 points to win.
- School Idol Festival (SIF): Long-lived mobile rhythm game featuring all the franchise's groups.
- School Idol Festival After School Activity (SIFAC): Love Live! arcade rhythm game, similar in gameplay to the School Idol Festival app and containing Muse, Aqours, and Saint Snow. Cabinets are no longer in service in Japan, but some have been exported to other countries for private use, and the PS4 version is available around the world under the name Wai Wai Home Meeting.
- School Idol Festival All Stars! (SIFAS): RPG-like mobile game with rhythm elements featuring Muse, Aqours, and Nijigasaki.
- Seiyuu: The Japanese term for voice actors/actresses.
- Ultra Orange: A special chemical-based glow stick that when cracked, gives off an extremely bright orange light hence the Ultra Orange name. They can come in both chemical and battery form, but many recognize it as the chemical light stick.
- Unit: Refers to a specific group(s) within a main one (Guilty Kiss/CYaRon/AZALEA for Aqours) or within a franchise (D4DJ units). Subunits may sometimes be used