Common terms used in the field	In this review discussed as
Notochordal cells Weiler et al. (2010); Merceron et al. (2014); de Bree et al. (2018): cells within the notochord	eNCs
Mature notochordal cells Colombier et al. (2020) , Notochordal-like cells Zhang et al. (2018) , Notochordal NP cells Wuertz et al. (2007); Choi et al. (2018) , and NP progenitors Colombier et al. (2016) : the vacuolated cells in the NP	NCs
Chondrocyte-like cells Bergknut et al. (2013a); Risbud et al. (2015); Rodrigues-Pinto et al. (2016); Bach et al. (2017a); Bach et al. (2017b); Séguin et al. (2018); Zhang et al. (2018); Mohanty et al. (2019) , Chondrocyte-like mature NP cells Guehring et al. (2009) , Mature nucleus pulposus cells Saggese et al. (2015); Mohanty et al. (2019) , and Nucleopulpocytes Colombier et al. (2014); Clouet et al. (2019): small, non-vacuolated cells in the NP	NPCs
Notochord cells Barrionuevo et al. (2006); McCann et al. (2016); Rodrigues-Pinto et al. (2016); Séguin et al. (2018); Mohanty et al. (2019): cells within the notochord AND the vacuolated cells in the NP	eNCs or NCs (depending on their location: notochord or NP, respectively)
Nucleus pulposus/NP cells Sakai et al. (2012); Bedore et al. (2013); Winkler et al. (2014); Liu K. et al. (2015); Brown et al. (2018); Silagi et al. (2018); Tang et al. (2018); Mohanty and Dahia (2019); Calió et al. (2021): the vacuolated and non-vacuolated cells in the NP	NCs or NPCs (depending on their (non)vacuolated phenotype)