diff --git a/lua/code-completion.lua b/lua/code-completion.lua
index 2413289..b1a6111 100644
--- a/lua/code-completion.lua
+++ b/lua/code-completion.lua
@@ -53,6 +53,9 @@ cmp.setup({
 		{ name = "buffer", keyword_length = 2 },
 		{ name = "calc" },
 		{ name = "lua-latex-symbols", option = { cache = true } },
+		{ name = "doxygen" },
+		{ name = "cmp_tabnine" },
+		{ name = "spell", option = { keep_all_entries = false }, keyword_length = 3 },
 	}),
 
 	-- add formatting of the different sources
diff --git a/lua/plugins.lua b/lua/plugins.lua
index 34fab92..888c755 100644
--- a/lua/plugins.lua
+++ b/lua/plugins.lua
@@ -67,4 +67,13 @@ return require("packer").startup(function(use)
 		requires = { "nvim-tree/nvim-web-devicons" },
 	})
 	use("hiroakis/cyberspace.vim") -- I'm feeling cyber
+	use({
+		"paopaol/cmp-doxygen",
+		requires = {
+			"nvim-treesitter/nvim-treesitter",
+			"nvim-treesitter/nvim-treesitter-textobjects",
+		},
+	})
+	use({ "tzachar/cmp-tabnine", run = "./install.sh", requires = "hrsh7th/nvim-cmp" })
+	use("f3fora/cmp-spell")
 end)
diff --git a/spell/en.utf-8.add b/spell/en.utf-8.add
index 98b3bb2..134a758 100644
--- a/spell/en.utf-8.add
+++ b/spell/en.utf-8.add
@@ -87,3 +87,17 @@ AUTOSAR
 toolchain
 FPGAs
 efabless
+ICs
+unmatching
+photonic
+cryptoalgorithms
+depackage
+PIPs
+detectability
+runtime
+IDDT
+SoC
+asic
+GDS
+RTL
+IPs
diff --git a/spell/en.utf-8.add.spl b/spell/en.utf-8.add.spl
index deb3ff7..a5e837f 100644
Binary files a/spell/en.utf-8.add.spl and b/spell/en.utf-8.add.spl differ