diff --git a/ch01_intro.adoc b/ch01_intro.adoc
index 79cb07fd..db557596 100644
--- a/ch01_intro.adoc
+++ b/ch01_intro.adoc
@@ -408,7 +408,7 @@ Here are some methods for acquiring bitcoin as a new user:
 * Find a friend who has bitcoins and buy some from him or her directly. Many Bitcoin users start this way. This method is the least complicated. One way to meet people with bitcoins is to attend a local Bitcoin meetup listed at pass:[<a href="https://meetup.com" class="orm:hideurl">Meetup.com</a>].
 * Earn bitcoin by selling a product or service for bitcoin. If you are a programmer, sell your programming skills. If you're a hairdresser, cut hair for bitcoins.
 * Use a Bitcoin ATM in your city.  A Bitcoin ATM is a machine that accepts cash and sends bitcoins to your smartphone Bitcoin wallet.
-* Use a Bitcoin currency exchange linked to your bank account. Many countries now have currency exchanges that offer a market for buyers and sellers to swap bitcoins with local currency. Exchange-rate listing services, such as https://bitcoinaverage.com[BitcoinAverage], often show a list of Bitcoin exchanges for each currency.
+* Use((("bitcoins", "currency exchanges")))((("currency exchanges"))) a Bitcoin currency exchange linked to your bank account. Many countries now have currency exchanges that offer a market for buyers and sellers to swap bitcoins with local currency. Exchange-rate listing services, such as https://bitcoinaverage.com[BitcoinAverage], often show a list of Bitcoin exchanges for each currency.
 
 [TIP]
 ====
diff --git a/ch04_keys.adoc b/ch04_keys.adoc
index 7035af1a..06525502 100644
--- a/ch04_keys.adoc
+++ b/ch04_keys.adoc
@@ -1836,7 +1836,7 @@ gives discount pricing to Eugenia.
 // https://github.com/MakisChristou/vanitybech
 
 We don't expect to see many vanity addresses in
-the future unless the preceding problems are solved.
+the future unless the preceding problems are((("addresses", "vanity" startref="address-vanity")))((("privacy", "vanity addresses", startref="privacy-vanity")))((("vanity addresses", startref="vanity-addr"))) solved.
 
 [[paper_wallets]]
 ==== Paper Wallets
diff --git a/ch07_authorization-authentication.adoc b/ch07_authorization-authentication.adoc
index 12000b4c..a55e8b64 100644
--- a/ch07_authorization-authentication.adoc
+++ b/ch07_authorization-authentication.adoc
@@ -957,7 +957,7 @@ is, they're kept off the blockchain (_offchain_). A child transaction cannot be
 parent transaction has been propagated, mined, and aged by the time
 specified in the relative timelock. One application of this use case is shown in <<state_channels>> and <<lightning_network>>.
 
-+OP_CSV+ is defined((("transactions", "timelocks", "relative", startref="transaction-timelock-relative")))((("timelocks", "relative", startref="timelock-relative")))((("lock time", "relative", startref="locktime-relative")))((("scripts", "timelocks", "relative", startref="script-timelock-relative")))((("OP_CSV script opcode", startref="op-csv"))) in detail in
++OP_CSV+ is defined((("transactions", "timelocks", "relative", startref="transaction-timelock-relative")))((("timelocks", "relative", startref="timelock-relative")))((("lock time", "relative", startref="locktime-relative")))((("scripts", "timelocks", "relative", startref="script-timelock-relative")))((("OP_CSV script opcode", startref="op-csv")))((("relative timelocks", start-ref="relative-timelock2"))) in detail in
 https://oreil.ly/z_Obw[BIP112,
 CHECKSEQUENCEVERIFY].
 
diff --git a/ch09_fees.adoc b/ch09_fees.adoc
index 25096c54..0d43cdf4 100644
--- a/ch09_fees.adoc
+++ b/ch09_fees.adoc
@@ -194,7 +194,7 @@ lower the fee rate on a transaction you've already sent, so you're stuck
 paying a higher fee rate.  But, when fee rates go up, there's a need for
 methods to be able to increase the fee rates on those transactions,
 which is called _fee bumping_.  There are two commonly used types of fee
-bumping in Bitcoin, replace by fee (RBF) and child pays for parent
+bumping in Bitcoin, replace by fee (RBF) and child pays for ((("fee rates" startref="fee-rate")))((("transaction fees", "fee rates", startref="fees-rates")))parent
 (CPFP).
 
 [[rbf]]