Changing concepts comes with a risk of creating merely verbal disputes. Accounts of topic continuity (such as Herman Cappelen's) are supposed to solve this problem. As this paper shows, however, no existing solution avoids the danger of mere verbalness. On the contrary, accounts of topic continuity in fact increase the danger of overlooking merely verbal disputes between pre-and post-ameliorators. Ultimately, this paper suggests accepting the danger of mere verbalness resulting from a change in topic as a downside of conceptual engineering. Changing the topic under discussion may be worth the risk, however, in many cases. In fact, this paper proposes that the main goal of conceptual engineering should be seen as changing topics for the better.

On a naive view of conceptual engineering, conceptual engineers simply aim at engineering concepts. This picture has recently come under attack. Sarah Sawyer (2018, 2020) and Derek Ball (2020) present two rather different, yet equally unorthodox, accounts of conceptual engineering, which they take to be superior to the naive picture. This paper casts doubts on the superiority of their respective accounts. By elaborating on the explanatory potential of "going meta", the paper defends the naive view against Sawyer's and Ball's rival proposals.

Verbal disputes are often seen as closely related to a lack of substantivity. However, a systematic and comprehensive investigation of how verbalness relates to substantivity is still missing. The present paper attempts to close this gap. In addition to offering different conceptions of verbalness, the paper further develops Sider’s (Writing the Book of the World, OUP, Oxford, 2011) notion of substantivity. Ultimately, I argue for a more careful choice of terminology when it comes to assessing a dispute as “(merely) verbal” or “nonsubstantive”. While the paper shows that there is no strict logical relation between mere verbalness and nonsubstantivity construed along the lines set out by Sider, it also demonstrates that further notable notions of (mere) verbalness and substantivity are in fact closely intertwined.

The metalinguistic approach to conceptual engineering construes disputes between (what I shall call) linguistic reformers and linguistic conservatives as metalinguistic disagreements on how best to use particular expressions. As the present paper argues, this approach has various merits. However, it was recently criticised in Cappelen’s seminal Fixing Language (2018). Cappelen raises an important objection against the metalinguistic picture. According to this objection – the Babel objection, as I shall call it – the metalinguistic account cannot accommodate the intuition of disagreement between linguistic conservatives and reformers who are speaking different languages. The objection generalises to metalinguistic approaches to e.g. moral disagreements. This paper discusses the Babel objection and shows how to dispel it.